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-rw-r--r--graphics/Alchemy/Alchemy.SlackBuild2
-rw-r--r--graphics/Blender/Blender.SlackBuild2
-rw-r--r--graphics/CairoSVG/CairoSVG.SlackBuild2
-rw-r--r--graphics/FSPViewer/FSPViewer.SlackBuild2
-rw-r--r--graphics/FreeCAD/FreeCAD.SlackBuild2
-rw-r--r--graphics/GPS/GPS.SlackBuild2
-rw-r--r--graphics/GraphicsMagick/GraphicsMagick.SlackBuild2
-rw-r--r--graphics/HotShots/HotShots.SlackBuild2
-rw-r--r--graphics/LDView/LDView.SlackBuild2
-rw-r--r--graphics/LDraw_data/LDraw_data.SlackBuild2
-rw-r--r--graphics/OpenCASCADE/OpenCASCADE.SlackBuild2
-rw-r--r--graphics/OpenSubdiv/OpenSubdiv.SlackBuild2
-rw-r--r--graphics/Pixie/Pixie.SlackBuild2
-rw-r--r--graphics/PureRef/PureRef.SlackBuild2
-rw-r--r--graphics/PyMOL/PyMOL.SlackBuild2
-rw-r--r--graphics/Shellpic/Shellpic.SlackBuild2
-rw-r--r--graphics/SweetHome3D/SweetHome3D.SlackBuild2
-rw-r--r--graphics/VariCAD/VariCAD.SlackBuild2
-rw-r--r--graphics/XnViewMP/XnViewMP.SlackBuild2
-rw-r--r--graphics/aaphoto/aaphoto.SlackBuild2
-rw-r--r--graphics/abcm2ps/abcm2ps.SlackBuild2
-rw-r--r--graphics/advancecomp/advancecomp.SlackBuild2
-rw-r--r--graphics/aewan/aewan.SlackBuild2
-rw-r--r--graphics/apitrace/apitrace.SlackBuild2
-rw-r--r--graphics/asciiquarium/asciiquarium.SlackBuild2
-rw-r--r--graphics/autotrace/autotrace.SlackBuild2
-rw-r--r--graphics/azpainter/azpainter.SlackBuild2
-rw-r--r--graphics/baires/baires.SlackBuild2
-rw-r--r--graphics/barcode/barcode.SlackBuild2
-rw-r--r--graphics/bdfedit/bdfedit.SlackBuild2
-rw-r--r--graphics/blender/blender.SlackBuild2
-rw-r--r--graphics/brlcad/brlcad.SlackBuild2
-rw-r--r--graphics/converseen/converseen.SlackBuild2
-rw-r--r--graphics/darktable/darktable.SlackBuild2
-rw-r--r--graphics/dblatex/dblatex.SlackBuild2
-rw-r--r--graphics/dcraw/dcraw.SlackBuild2
-rw-r--r--graphics/deskew/deskew.SlackBuild2
-rw-r--r--graphics/dia/dia.SlackBuild2
-rw-r--r--graphics/djview4/djview4.SlackBuild2
-rw-r--r--graphics/draw.io/draw.io.SlackBuild2
-rw-r--r--graphics/dvisvgm/dvisvgm.SlackBuild2
-rw-r--r--graphics/dxftoqet/dxftoqet.SlackBuild2
-rw-r--r--graphics/embree/embree.SlackBuild2
-rw-r--r--graphics/enblend-enfuse/enblend-enfuse.SlackBuild2
-rw-r--r--graphics/entangle/entangle.SlackBuild2
-rw-r--r--graphics/evolus-pencil/evolus-pencil.SlackBuild2
-rw-r--r--graphics/exact-image/exact-image.SlackBuild2
-rw-r--r--graphics/exif/exif.SlackBuild2
-rw-r--r--graphics/exiftags/exiftags.SlackBuild2
-rw-r--r--graphics/fbgrab/fbgrab.SlackBuild2
-rw-r--r--graphics/fbida/fbida.SlackBuild2
-rw-r--r--graphics/fbpic/fbpic.SlackBuild2
-rw-r--r--graphics/fbv/fbv.SlackBuild2
-rw-r--r--graphics/feh/feh.SlackBuild2
-rw-r--r--graphics/fig2sxd/fig2sxd.SlackBuild2
-rw-r--r--graphics/fim/fim.SlackBuild2
-rw-r--r--graphics/findimagedupes/findimagedupes.SlackBuild2
-rw-r--r--graphics/flameshot/flameshot.SlackBuild2
-rw-r--r--graphics/flpsed/flpsed.SlackBuild2
-rw-r--r--graphics/fontforge/fontforge.SlackBuild2
-rw-r--r--graphics/fotowall/fotowall.SlackBuild2
-rw-r--r--graphics/freewrl/freewrl.SlackBuild2
-rw-r--r--graphics/frescobaldi/frescobaldi.SlackBuild2
-rw-r--r--graphics/fritzing/fritzing.SlackBuild2
-rw-r--r--graphics/fyre/fyre.SlackBuild2
-rw-r--r--graphics/g3dviewer/g3dviewer.SlackBuild2
-rw-r--r--graphics/gallery/gallery.SlackBuild2
-rw-r--r--graphics/gbdfed/gbdfed.SlackBuild2
-rw-r--r--graphics/gcolor2/gcolor2.SlackBuild2
-rw-r--r--graphics/gdk-pixbuf-psd/gdk-pixbuf-psd.SlackBuild2
-rw-r--r--graphics/gifsicle/gifsicle.SlackBuild2
-rw-r--r--graphics/gimagereader/gimagereader.SlackBuild2
-rw-r--r--graphics/gimp-feca_hdr-plugin/gimp-feca_hdr-plugin.SlackBuild2
-rw-r--r--graphics/gimp-lqr-plugin/gimp-lqr-plugin.SlackBuild2
-rw-r--r--graphics/gimp-plugin-bimp/gimp-plugin-bimp.SlackBuild2
-rw-r--r--graphics/gimp-plugin-export-layers/gimp-plugin-export-layers.SlackBuild2
-rw-r--r--graphics/gimp-wideangle-plugin/gimp-wideangle-plugin.SlackBuild2
-rw-r--r--graphics/gliv/gliv.SlackBuild2
-rw-r--r--graphics/gmic/gmic.SlackBuild2
-rw-r--r--graphics/gnofract4d/gnofract4d.SlackBuild2
-rw-r--r--graphics/gnome-themes-extras/gnome-themes-extras.SlackBuild2
-rw-r--r--graphics/gnome-web-photo/gnome-web-photo.SlackBuild2
-rw-r--r--graphics/goocanvas/goocanvas.SlackBuild2
-rw-r--r--graphics/goocanvas2/goocanvas2.SlackBuild2
-rw-r--r--graphics/gource/gource.SlackBuild2
-rw-r--r--graphics/gpaint/gpaint.SlackBuild2
-rw-r--r--graphics/gpicview/gpicview.SlackBuild2
-rw-r--r--graphics/gpscorrelate/gpscorrelate.SlackBuild2
-rw-r--r--graphics/grafx2/grafx2.SlackBuild2
-rw-r--r--graphics/graph-easy/graph-easy.SlackBuild2
-rw-r--r--graphics/graphviz/graphviz.SlackBuild2
-rw-r--r--graphics/gscan2pdf/gscan2pdf.SlackBuild2
-rw-r--r--graphics/gthumb/gthumb.SlackBuild2
-rw-r--r--graphics/gtkam/gtkam.SlackBuild2
-rw-r--r--graphics/heif-gimp-plugin/heif-gimp-plugin.SlackBuild2
-rw-r--r--graphics/hp2xx/hp2xx.SlackBuild2
-rw-r--r--graphics/hugin/hugin.SlackBuild2
-rw-r--r--graphics/icc_profiles/icc_profiles.SlackBuild2
-rw-r--r--graphics/icc_profiles_from_eci/icc_profiles_from_eci.SlackBuild2
-rw-r--r--graphics/img2pdf/img2pdf.SlackBuild2
-rw-r--r--graphics/imgmin/imgmin.SlackBuild2
-rw-r--r--graphics/imgp/imgp.SlackBuild2
-rw-r--r--graphics/imv/imv.SlackBuild2
-rw-r--r--graphics/inkscape/inkscape.SlackBuild2
-rw-r--r--graphics/ipe/ipe.SlackBuild2
-rw-r--r--graphics/jUploadr/jUploadr.SlackBuild2
-rw-r--r--graphics/jhead/jhead.SlackBuild2
-rw-r--r--graphics/jp2a/jp2a.SlackBuild2
-rw-r--r--graphics/jpeg2ps/jpeg2ps.SlackBuild2
-rw-r--r--graphics/jpegoptim/jpegoptim.SlackBuild2
-rw-r--r--graphics/k3d/k3d.SlackBuild2
-rw-r--r--graphics/kamerka/kamerka.SlackBuild2
-rw-r--r--graphics/kim4/kim4.SlackBuild2
-rw-r--r--graphics/kphotoalbum/kphotoalbum.SlackBuild2
-rw-r--r--graphics/kuickshow/kuickshow.SlackBuild2
-rw-r--r--graphics/lcdtest/lcdtest.SlackBuild2
-rw-r--r--graphics/lddot/lddot.SlackBuild2
-rw-r--r--graphics/ldglite/ldglite.SlackBuild2
-rw-r--r--graphics/leocad/leocad.SlackBuild2
-rw-r--r--graphics/leocad_pieces/leocad_pieces.SlackBuild2
-rw-r--r--graphics/libfpx/libfpx.SlackBuild2
-rw-r--r--graphics/libplacebo/libplacebo.SlackBuild2
-rw-r--r--graphics/librecad/librecad.SlackBuild2
-rw-r--r--graphics/lilypond/lilypond.SlackBuild2
-rw-r--r--graphics/luminance-hdr/luminance-hdr.SlackBuild2
-rw-r--r--graphics/luxrender/luxrender.SlackBuild2
-rw-r--r--graphics/maim/maim.SlackBuild2
-rw-r--r--graphics/makehuman/makehuman.SlackBuild2
-rw-r--r--graphics/mapcrafter/mapcrafter.SlackBuild2
-rw-r--r--graphics/meh/meh.SlackBuild2
-rw-r--r--graphics/meshlab/meshlab.SlackBuild2
-rw-r--r--graphics/metapixel/metapixel.SlackBuild2
-rw-r--r--graphics/mftrace/mftrace.SlackBuild2
-rw-r--r--graphics/mirage/mirage.SlackBuild2
-rw-r--r--graphics/mitsuba-blender/mitsuba-blender.SlackBuild2
-rw-r--r--graphics/mitsuba/mitsuba.SlackBuild2
-rw-r--r--graphics/mlbrot/mlbrot.SlackBuild2
-rw-r--r--graphics/mozjpeg/mozjpeg.SlackBuild2
-rw-r--r--graphics/mtpaint/mtpaint.SlackBuild2
-rw-r--r--graphics/mypaint/mypaint.SlackBuild2
-rw-r--r--graphics/nomacs/nomacs.SlackBuild2
-rw-r--r--graphics/nvidia-cg-toolkit/nvidia-cg-toolkit.SlackBuild2
-rw-r--r--graphics/nvidia-texture-tools/nvidia-texture-tools.SlackBuild2
-rw-r--r--graphics/openclipart/openclipart.SlackBuild2
-rw-r--r--graphics/opencollada/opencollada.SlackBuild2
-rw-r--r--graphics/opencolorio/opencolorio.SlackBuild2
-rw-r--r--graphics/openimageio/openimageio.SlackBuild2
-rw-r--r--graphics/openscad-mcad/openscad-mcad.SlackBuild2
-rw-r--r--graphics/openscad/openscad.SlackBuild2
-rw-r--r--graphics/optipng/optipng.SlackBuild2
-rw-r--r--graphics/oyranos/oyranos.SlackBuild2
-rw-r--r--graphics/paraview/paraview.SlackBuild2
-rw-r--r--graphics/pcx-pixbuf-loader/pcx-pixbuf-loader.SlackBuild2
-rw-r--r--graphics/pdf2png/pdf2png.SlackBuild2
-rw-r--r--graphics/pdf2svg/pdf2svg.SlackBuild2
-rw-r--r--graphics/pencil2d/pencil2d.SlackBuild2
-rw-r--r--graphics/pencil3/pencil3.SlackBuild2
-rw-r--r--graphics/phatch/phatch.SlackBuild2
-rw-r--r--graphics/pho/pho.SlackBuild2
-rw-r--r--graphics/photivo/photivo.SlackBuild2
-rw-r--r--graphics/photoqt/photoqt.SlackBuild2
-rw-r--r--graphics/phototonic/phototonic.SlackBuild2
-rw-r--r--graphics/plotutils/plotutils.SlackBuild2
-rw-r--r--graphics/png2ico/png2ico.SlackBuild2
-rw-r--r--graphics/pngcrush/pngcrush.SlackBuild2
-rw-r--r--graphics/pngquant/pngquant.SlackBuild2
-rw-r--r--graphics/potrace/potrace.SlackBuild2
-rw-r--r--graphics/povray/povray.SlackBuild2
-rw-r--r--graphics/pqiv/pqiv.SlackBuild2
-rw-r--r--graphics/pr0ntools/pr0ntools.SlackBuild2
-rw-r--r--graphics/psftools/psftools.SlackBuild2
-rw-r--r--graphics/pyformex/pyformex.SlackBuild2
-rw-r--r--graphics/pygifme/pygifme.SlackBuild2
-rw-r--r--graphics/pygraphviz/pygraphviz.SlackBuild2
-rw-r--r--graphics/qcad/qcad.SlackBuild2
-rw-r--r--graphics/qcomicbook/qcomicbook.SlackBuild2
-rw-r--r--graphics/qelectrotech/qelectrotech.SlackBuild2
-rw-r--r--graphics/qiv/qiv.SlackBuild2
-rw-r--r--graphics/ralcgm/ralcgm.SlackBuild2
-rw-r--r--graphics/raw-thumbnailer/raw-thumbnailer.SlackBuild2
-rw-r--r--graphics/rawstudio/rawstudio.SlackBuild2
-rw-r--r--graphics/rawtherapee/rawtherapee.SlackBuild2
-rw-r--r--graphics/renderdoc/renderdoc.SlackBuild2
-rw-r--r--graphics/resynthesizer/resynthesizer.SlackBuild2
-rw-r--r--graphics/ristretto/ristretto.SlackBuild2
-rw-r--r--graphics/scantailor-advanced/scantailor-advanced.SlackBuild2
-rw-r--r--graphics/scour/scour.SlackBuild2
-rw-r--r--graphics/screencloud/screencloud.SlackBuild2
-rw-r--r--graphics/screengrab/screengrab.SlackBuild2
-rw-r--r--graphics/scrot/scrot.SlackBuild2
-rw-r--r--graphics/separate+/separate+.SlackBuild2
-rw-r--r--graphics/shalbum/shalbum.SlackBuild2
-rw-r--r--graphics/shotwell/shotwell.SlackBuild2
-rw-r--r--graphics/shutter/shutter.SlackBuild2
-rw-r--r--graphics/simple-scan/simple-scan.SlackBuild2
-rw-r--r--graphics/sng/sng.SlackBuild2
-rw-r--r--graphics/svp/svp.SlackBuild2
-rw-r--r--graphics/sxiv/sxiv.SlackBuild2
-rw-r--r--graphics/tclblt/tclblt.SlackBuild2
-rw-r--r--graphics/teighafileconverter/teighafileconverter.SlackBuild2
-rw-r--r--graphics/teighaviewer/teighaviewer.SlackBuild2
-rw-r--r--graphics/tesseract/tesseract.SlackBuild2
-rw-r--r--graphics/textext/textext.SlackBuild2
-rw-r--r--graphics/tgif-QPL/tgif-QPL.SlackBuild2
-rw-r--r--graphics/tintii/tintii.SlackBuild2
-rw-r--r--graphics/tkpng/tkpng.SlackBuild2
-rw-r--r--graphics/triangulizor/triangulizor.SlackBuild2
-rw-r--r--graphics/trimage/trimage.SlackBuild2
-rw-r--r--graphics/ttyload/ttyload.SlackBuild2
-rw-r--r--graphics/tuxpaint-stamps/tuxpaint-stamps.SlackBuild2
-rw-r--r--graphics/tuxpaint/tuxpaint.SlackBuild2
-rw-r--r--graphics/ueberzug/ueberzug.SlackBuild2
-rw-r--r--graphics/ufraw/ufraw.SlackBuild2
-rw-r--r--graphics/uniconvertor/uniconvertor.SlackBuild2
-rw-r--r--graphics/unpaper/unpaper.SlackBuild2
-rw-r--r--graphics/urbanlightscape/urbanlightscape.SlackBuild2
-rw-r--r--graphics/veles/veles.SlackBuild2
-rw-r--r--graphics/viewnior/viewnior.SlackBuild2
-rw-r--r--graphics/vips/vips.SlackBuild2
-rw-r--r--graphics/vsxu/vsxu.SlackBuild2
-rw-r--r--graphics/vuescan/vuescan.SlackBuild2
-rw-r--r--graphics/wavelet-denoise/wavelet-denoise.SlackBuild2
-rw-r--r--graphics/webp-pixbuf-loader/webp-pixbuf-loader.SlackBuild2
-rw-r--r--graphics/white_dune/white_dune.SlackBuild2
-rw-r--r--graphics/whyteboard/whyteboard.SlackBuild2
-rw-r--r--graphics/wine-nine-standalone/wine-nine-standalone.SlackBuild2
-rw-r--r--graphics/xbmbrowser/xbmbrowser.SlackBuild2
-rw-r--r--graphics/xcalib/xcalib.SlackBuild2
-rw-r--r--graphics/xcf-pixbuf-loader/xcf-pixbuf-loader.SlackBuild2
-rw-r--r--graphics/xcur2png/xcur2png.SlackBuild2
-rw-r--r--graphics/xdaliclock/xdaliclock.SlackBuild2
-rw-r--r--graphics/xdot/xdot.SlackBuild2
-rw-r--r--graphics/xfishtank/xfishtank.SlackBuild2
-rw-r--r--graphics/xli/xli.SlackBuild2
-rw-r--r--graphics/xmedcon/xmedcon.SlackBuild2
-rw-r--r--graphics/xpe/xpe.SlackBuild2
-rw-r--r--graphics/xzgv/xzgv.SlackBuild2
-rw-r--r--graphics/yacreader/yacreader.SlackBuild2
-rw-r--r--graphics/yafaray-blender/yafaray-blender.SlackBuild2
-rw-r--r--graphics/yafaray/yafaray.SlackBuild2
-rw-r--r--graphics/yagf/yagf.SlackBuild2
-rw-r--r--graphics/yed/yed.SlackBuild2
-rw-r--r--graphics/yesplz/yesplz.SlackBuild2
-rw-r--r--graphics/zbar/zbar.SlackBuild2
-rw-r--r--graphics/zgv/zgv.SlackBuild2
245 files changed, 245 insertions, 245 deletions
diff --git a/graphics/Alchemy/Alchemy.SlackBuild b/graphics/Alchemy/Alchemy.SlackBuild
index c82e13f80d1e..7bff8993a3be 100644
--- a/graphics/Alchemy/Alchemy.SlackBuild
+++ b/graphics/Alchemy/Alchemy.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Alchemy
diff --git a/graphics/Blender/Blender.SlackBuild b/graphics/Blender/Blender.SlackBuild
index bb41c4fbec38..8fdbeddee6c1 100644
--- a/graphics/Blender/Blender.SlackBuild
+++ b/graphics/Blender/Blender.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Blender
diff --git a/graphics/CairoSVG/CairoSVG.SlackBuild b/graphics/CairoSVG/CairoSVG.SlackBuild
index 0725ad10cbc2..81462c5cc6aa 100644
--- a/graphics/CairoSVG/CairoSVG.SlackBuild
+++ b/graphics/CairoSVG/CairoSVG.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for CairoSVG
diff --git a/graphics/FSPViewer/FSPViewer.SlackBuild b/graphics/FSPViewer/FSPViewer.SlackBuild
index fa28046f5e08..fc74338cde7c 100644
--- a/graphics/FSPViewer/FSPViewer.SlackBuild
+++ b/graphics/FSPViewer/FSPViewer.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Copyright 2018 junkyardsparkle, Los Angeles, CA, USA
# All rights reserved.
diff --git a/graphics/FreeCAD/FreeCAD.SlackBuild b/graphics/FreeCAD/FreeCAD.SlackBuild
index 14a26658beae..17e3b3ab1be8 100644
--- a/graphics/FreeCAD/FreeCAD.SlackBuild
+++ b/graphics/FreeCAD/FreeCAD.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for FreeCAD
diff --git a/graphics/GPS/GPS.SlackBuild b/graphics/GPS/GPS.SlackBuild
index f28bd34762da..7585578d2177 100644
--- a/graphics/GPS/GPS.SlackBuild
+++ b/graphics/GPS/GPS.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for GIMP Paint Studio
diff --git a/graphics/GraphicsMagick/GraphicsMagick.SlackBuild b/graphics/GraphicsMagick/GraphicsMagick.SlackBuild
index ea968873ffca..5072cbbc4744 100644
--- a/graphics/GraphicsMagick/GraphicsMagick.SlackBuild
+++ b/graphics/GraphicsMagick/GraphicsMagick.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for GraphicsMagick
diff --git a/graphics/HotShots/HotShots.SlackBuild b/graphics/HotShots/HotShots.SlackBuild
index 992456d12389..190797de76e4 100644
--- a/graphics/HotShots/HotShots.SlackBuild
+++ b/graphics/HotShots/HotShots.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for HotShots
diff --git a/graphics/LDView/LDView.SlackBuild b/graphics/LDView/LDView.SlackBuild
index 9f5739c85dd2..b4ecd50db12a 100644
--- a/graphics/LDView/LDView.SlackBuild
+++ b/graphics/LDView/LDView.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for LDView:
# a program to visualize LDraw files
diff --git a/graphics/LDraw_data/LDraw_data.SlackBuild b/graphics/LDraw_data/LDraw_data.SlackBuild
index 1ca2d5d4a077..b2b33f142bb6 100644
--- a/graphics/LDraw_data/LDraw_data.SlackBuild
+++ b/graphics/LDraw_data/LDraw_data.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for LDRAW datafiles, needed by
# several LDraw utilities
diff --git a/graphics/OpenCASCADE/OpenCASCADE.SlackBuild b/graphics/OpenCASCADE/OpenCASCADE.SlackBuild
index 808826309059..dc4ba79dcddf 100644
--- a/graphics/OpenCASCADE/OpenCASCADE.SlackBuild
+++ b/graphics/OpenCASCADE/OpenCASCADE.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for OpenCASCADE
diff --git a/graphics/OpenSubdiv/OpenSubdiv.SlackBuild b/graphics/OpenSubdiv/OpenSubdiv.SlackBuild
index 98b1bb1bbd92..23995180d116 100644
--- a/graphics/OpenSubdiv/OpenSubdiv.SlackBuild
+++ b/graphics/OpenSubdiv/OpenSubdiv.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Opensubdiv
diff --git a/graphics/Pixie/Pixie.SlackBuild b/graphics/Pixie/Pixie.SlackBuild
index 5335ebce37e6..0cc6717e03d2 100644
--- a/graphics/Pixie/Pixie.SlackBuild
+++ b/graphics/Pixie/Pixie.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for pixie
diff --git a/graphics/PureRef/PureRef.SlackBuild b/graphics/PureRef/PureRef.SlackBuild
index a60ad12ebd50..df457c156d7f 100644
--- a/graphics/PureRef/PureRef.SlackBuild
+++ b/graphics/PureRef/PureRef.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for PureRef
diff --git a/graphics/PyMOL/PyMOL.SlackBuild b/graphics/PyMOL/PyMOL.SlackBuild
index 935b4f0225c1..e55d2f28a472 100644
--- a/graphics/PyMOL/PyMOL.SlackBuild
+++ b/graphics/PyMOL/PyMOL.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for PyMOL
diff --git a/graphics/Shellpic/Shellpic.SlackBuild b/graphics/Shellpic/Shellpic.SlackBuild
index 976f60f813b6..bdb788907f31 100644
--- a/graphics/Shellpic/Shellpic.SlackBuild
+++ b/graphics/Shellpic/Shellpic.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Shellpic
diff --git a/graphics/SweetHome3D/SweetHome3D.SlackBuild b/graphics/SweetHome3D/SweetHome3D.SlackBuild
index dee73365994a..d508a95de60e 100644
--- a/graphics/SweetHome3D/SweetHome3D.SlackBuild
+++ b/graphics/SweetHome3D/SweetHome3D.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for SweetHome3D
diff --git a/graphics/VariCAD/VariCAD.SlackBuild b/graphics/VariCAD/VariCAD.SlackBuild
index 0fb401b7e1d3..1b922ddde3b2 100644
--- a/graphics/VariCAD/VariCAD.SlackBuild
+++ b/graphics/VariCAD/VariCAD.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for VariCAD
# a 3D/2D CAD system for mechanical engineering
diff --git a/graphics/XnViewMP/XnViewMP.SlackBuild b/graphics/XnViewMP/XnViewMP.SlackBuild
index 0d0adc7954fb..a51776afc0e5 100644
--- a/graphics/XnViewMP/XnViewMP.SlackBuild
+++ b/graphics/XnViewMP/XnViewMP.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for rlvm
diff --git a/graphics/aaphoto/aaphoto.SlackBuild b/graphics/aaphoto/aaphoto.SlackBuild
index d42d4910aea7..a017b9ff6ecf 100644
--- a/graphics/aaphoto/aaphoto.SlackBuild
+++ b/graphics/aaphoto/aaphoto.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for aaphoto
diff --git a/graphics/abcm2ps/abcm2ps.SlackBuild b/graphics/abcm2ps/abcm2ps.SlackBuild
index 7a7e2ef301ab..b3262fdabcb3 100644
--- a/graphics/abcm2ps/abcm2ps.SlackBuild
+++ b/graphics/abcm2ps/abcm2ps.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for <abcm2ps>
#
# Michales (clavisound) Michaloudes korgie@gmail.com <2017>
diff --git a/graphics/advancecomp/advancecomp.SlackBuild b/graphics/advancecomp/advancecomp.SlackBuild
index 663f9b6092c8..6e2a168afd20 100644
--- a/graphics/advancecomp/advancecomp.SlackBuild
+++ b/graphics/advancecomp/advancecomp.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for advancecomp
diff --git a/graphics/aewan/aewan.SlackBuild b/graphics/aewan/aewan.SlackBuild
index c4abe4149ca6..a995c0ce0022 100644
--- a/graphics/aewan/aewan.SlackBuild
+++ b/graphics/aewan/aewan.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for aewan
diff --git a/graphics/apitrace/apitrace.SlackBuild b/graphics/apitrace/apitrace.SlackBuild
index d0f5078f05b3..6f36357c668d 100644
--- a/graphics/apitrace/apitrace.SlackBuild
+++ b/graphics/apitrace/apitrace.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for apitrace
diff --git a/graphics/asciiquarium/asciiquarium.SlackBuild b/graphics/asciiquarium/asciiquarium.SlackBuild
index bfdcb35cdc23..6982e415daa2 100644
--- a/graphics/asciiquarium/asciiquarium.SlackBuild
+++ b/graphics/asciiquarium/asciiquarium.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for asciiquarium
diff --git a/graphics/autotrace/autotrace.SlackBuild b/graphics/autotrace/autotrace.SlackBuild
index a1345b0ad126..0712a2f9d563 100644
--- a/graphics/autotrace/autotrace.SlackBuild
+++ b/graphics/autotrace/autotrace.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
#
# Slackware build script for autotrace
#
diff --git a/graphics/azpainter/azpainter.SlackBuild b/graphics/azpainter/azpainter.SlackBuild
index 9cc32580c1ed..caac6b36bd1c 100644
--- a/graphics/azpainter/azpainter.SlackBuild
+++ b/graphics/azpainter/azpainter.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for azpainter
diff --git a/graphics/baires/baires.SlackBuild b/graphics/baires/baires.SlackBuild
index 4e7fdb267a30..d1c0b071e8f8 100644
--- a/graphics/baires/baires.SlackBuild
+++ b/graphics/baires/baires.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Baires
# Copyright 2012, Bojan Popovic, Belgrade, Serbia, <bocke@slackware-srbija.org>
diff --git a/graphics/barcode/barcode.SlackBuild b/graphics/barcode/barcode.SlackBuild
index 459e08bd4e81..3ef6fe6bfbf9 100644
--- a/graphics/barcode/barcode.SlackBuild
+++ b/graphics/barcode/barcode.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for barcode
diff --git a/graphics/bdfedit/bdfedit.SlackBuild b/graphics/bdfedit/bdfedit.SlackBuild
index 9b0289f35c86..da696d0bda73 100644
--- a/graphics/bdfedit/bdfedit.SlackBuild
+++ b/graphics/bdfedit/bdfedit.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for bdfedit
diff --git a/graphics/blender/blender.SlackBuild b/graphics/blender/blender.SlackBuild
index 334a9e41ec50..d5fb038a2d19 100644
--- a/graphics/blender/blender.SlackBuild
+++ b/graphics/blender/blender.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Blender
# Ryan P.C. McQuen | Everett, WA | ryanpcmcquen@member.fsf.org
diff --git a/graphics/brlcad/brlcad.SlackBuild b/graphics/brlcad/brlcad.SlackBuild
index 694e2039f87d..31580d21d487 100644
--- a/graphics/brlcad/brlcad.SlackBuild
+++ b/graphics/brlcad/brlcad.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for BRL-CAD
diff --git a/graphics/converseen/converseen.SlackBuild b/graphics/converseen/converseen.SlackBuild
index 7b8ea81092de..6bdaee2fd9ff 100644
--- a/graphics/converseen/converseen.SlackBuild
+++ b/graphics/converseen/converseen.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for converseen
diff --git a/graphics/darktable/darktable.SlackBuild b/graphics/darktable/darktable.SlackBuild
index 6b6954a78896..9e7f4c146b7d 100644
--- a/graphics/darktable/darktable.SlackBuild
+++ b/graphics/darktable/darktable.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for darktable
diff --git a/graphics/dblatex/dblatex.SlackBuild b/graphics/dblatex/dblatex.SlackBuild
index 1627eefa46df..a9ed09ccc782 100644
--- a/graphics/dblatex/dblatex.SlackBuild
+++ b/graphics/dblatex/dblatex.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for dblatex
diff --git a/graphics/dcraw/dcraw.SlackBuild b/graphics/dcraw/dcraw.SlackBuild
index fca2e4c3b3ae..b482bda81f2f 100644
--- a/graphics/dcraw/dcraw.SlackBuild
+++ b/graphics/dcraw/dcraw.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware Package Build Script for dcraw
# Home Page http://cybercom.net/~dcoffin/dcraw
diff --git a/graphics/deskew/deskew.SlackBuild b/graphics/deskew/deskew.SlackBuild
index 747820d38023..5dbeba39d168 100644
--- a/graphics/deskew/deskew.SlackBuild
+++ b/graphics/deskew/deskew.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for deskew
diff --git a/graphics/dia/dia.SlackBuild b/graphics/dia/dia.SlackBuild
index 0726d31766bf..27caaa85a1b5 100644
--- a/graphics/dia/dia.SlackBuild
+++ b/graphics/dia/dia.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for dia
diff --git a/graphics/djview4/djview4.SlackBuild b/graphics/djview4/djview4.SlackBuild
index 6b0b18846586..fedd6c3b3d4d 100644
--- a/graphics/djview4/djview4.SlackBuild
+++ b/graphics/djview4/djview4.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for DjView4
diff --git a/graphics/draw.io/draw.io.SlackBuild b/graphics/draw.io/draw.io.SlackBuild
index ed9834aa1124..f736c6671906 100644
--- a/graphics/draw.io/draw.io.SlackBuild
+++ b/graphics/draw.io/draw.io.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for draw.io
diff --git a/graphics/dvisvgm/dvisvgm.SlackBuild b/graphics/dvisvgm/dvisvgm.SlackBuild
index ee5442662475..d68a1eb3ec11 100644
--- a/graphics/dvisvgm/dvisvgm.SlackBuild
+++ b/graphics/dvisvgm/dvisvgm.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for dvisvgm
# SlackBuild Version: 151119
# Copyright 2015 Igor ( igor29768 AT gmail.com )
diff --git a/graphics/dxftoqet/dxftoqet.SlackBuild b/graphics/dxftoqet/dxftoqet.SlackBuild
index 1a65154af5c2..4ccf8edb554d 100644
--- a/graphics/dxftoqet/dxftoqet.SlackBuild
+++ b/graphics/dxftoqet/dxftoqet.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for dxftoqet
diff --git a/graphics/embree/embree.SlackBuild b/graphics/embree/embree.SlackBuild
index 6a70fc784a2e..13e631eb5f2e 100644
--- a/graphics/embree/embree.SlackBuild
+++ b/graphics/embree/embree.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for embree
diff --git a/graphics/enblend-enfuse/enblend-enfuse.SlackBuild b/graphics/enblend-enfuse/enblend-enfuse.SlackBuild
index 7d1652430195..71b4fa88c886 100644
--- a/graphics/enblend-enfuse/enblend-enfuse.SlackBuild
+++ b/graphics/enblend-enfuse/enblend-enfuse.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
#
# Slackware build script for Enblend-Enfuse
#
diff --git a/graphics/entangle/entangle.SlackBuild b/graphics/entangle/entangle.SlackBuild
index 292aad98617f..2b0f8c969ee5 100644
--- a/graphics/entangle/entangle.SlackBuild
+++ b/graphics/entangle/entangle.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for entangle
diff --git a/graphics/evolus-pencil/evolus-pencil.SlackBuild b/graphics/evolus-pencil/evolus-pencil.SlackBuild
index 89ba5dda4de2..ea73559c6fb6 100644
--- a/graphics/evolus-pencil/evolus-pencil.SlackBuild
+++ b/graphics/evolus-pencil/evolus-pencil.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for evolus-pencil
diff --git a/graphics/exact-image/exact-image.SlackBuild b/graphics/exact-image/exact-image.SlackBuild
index 59fd04dbd669..36d56027a4e8 100644
--- a/graphics/exact-image/exact-image.SlackBuild
+++ b/graphics/exact-image/exact-image.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for exact-image
diff --git a/graphics/exif/exif.SlackBuild b/graphics/exif/exif.SlackBuild
index c18c99c8a4e2..3d00b8e6452b 100644
--- a/graphics/exif/exif.SlackBuild
+++ b/graphics/exif/exif.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for exif
diff --git a/graphics/exiftags/exiftags.SlackBuild b/graphics/exiftags/exiftags.SlackBuild
index 90d0d97c571b..08402b460694 100644
--- a/graphics/exiftags/exiftags.SlackBuild
+++ b/graphics/exiftags/exiftags.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for exiftags
# Written by Cezary M. Kruk (c.kruk@bigfoot.com)
diff --git a/graphics/fbgrab/fbgrab.SlackBuild b/graphics/fbgrab/fbgrab.SlackBuild
index c232b5b4b97d..7da4400be0f6 100644
--- a/graphics/fbgrab/fbgrab.SlackBuild
+++ b/graphics/fbgrab/fbgrab.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for fbgrab
diff --git a/graphics/fbida/fbida.SlackBuild b/graphics/fbida/fbida.SlackBuild
index 84c9d05406ce..3f2b4224d41a 100644
--- a/graphics/fbida/fbida.SlackBuild
+++ b/graphics/fbida/fbida.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for fbida
diff --git a/graphics/fbpic/fbpic.SlackBuild b/graphics/fbpic/fbpic.SlackBuild
index 516c91197577..1ea83e08c5e3 100644
--- a/graphics/fbpic/fbpic.SlackBuild
+++ b/graphics/fbpic/fbpic.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for fbpic
diff --git a/graphics/fbv/fbv.SlackBuild b/graphics/fbv/fbv.SlackBuild
index 3150d7b6be65..47b1e68f344a 100644
--- a/graphics/fbv/fbv.SlackBuild
+++ b/graphics/fbv/fbv.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for fbv
diff --git a/graphics/feh/feh.SlackBuild b/graphics/feh/feh.SlackBuild
index 4873d18f5a0c..8a79479b51d5 100644
--- a/graphics/feh/feh.SlackBuild
+++ b/graphics/feh/feh.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for feh
diff --git a/graphics/fig2sxd/fig2sxd.SlackBuild b/graphics/fig2sxd/fig2sxd.SlackBuild
index 55797f12de3b..af028b9d1972 100644
--- a/graphics/fig2sxd/fig2sxd.SlackBuild
+++ b/graphics/fig2sxd/fig2sxd.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for fig2sxd
diff --git a/graphics/fim/fim.SlackBuild b/graphics/fim/fim.SlackBuild
index 1416014e3112..11deece20e9b 100644
--- a/graphics/fim/fim.SlackBuild
+++ b/graphics/fim/fim.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for fim
diff --git a/graphics/findimagedupes/findimagedupes.SlackBuild b/graphics/findimagedupes/findimagedupes.SlackBuild
index 1f0d89034bb3..2af95f36a863 100644
--- a/graphics/findimagedupes/findimagedupes.SlackBuild
+++ b/graphics/findimagedupes/findimagedupes.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for findimagedupes
diff --git a/graphics/flameshot/flameshot.SlackBuild b/graphics/flameshot/flameshot.SlackBuild
index 1f0df31576fe..c011a146db65 100644
--- a/graphics/flameshot/flameshot.SlackBuild
+++ b/graphics/flameshot/flameshot.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for flameshot
diff --git a/graphics/flpsed/flpsed.SlackBuild b/graphics/flpsed/flpsed.SlackBuild
index 80b9bea7a3f8..01ae58847259 100644
--- a/graphics/flpsed/flpsed.SlackBuild
+++ b/graphics/flpsed/flpsed.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for flpsed
# Originally written by Jack Maddox <email removed>
diff --git a/graphics/fontforge/fontforge.SlackBuild b/graphics/fontforge/fontforge.SlackBuild
index 0e5952bb9383..51cc8b44ca29 100644
--- a/graphics/fontforge/fontforge.SlackBuild
+++ b/graphics/fontforge/fontforge.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for fontforge
diff --git a/graphics/fotowall/fotowall.SlackBuild b/graphics/fotowall/fotowall.SlackBuild
index 8d7f16d4ce81..45a3c1326eea 100644
--- a/graphics/fotowall/fotowall.SlackBuild
+++ b/graphics/fotowall/fotowall.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for fotowall
# Home Page http://www.enricoros.com/opensource/fotowall/
diff --git a/graphics/freewrl/freewrl.SlackBuild b/graphics/freewrl/freewrl.SlackBuild
index 95c636fb9457..f4a3d9e18e53 100644
--- a/graphics/freewrl/freewrl.SlackBuild
+++ b/graphics/freewrl/freewrl.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for freewrl
diff --git a/graphics/frescobaldi/frescobaldi.SlackBuild b/graphics/frescobaldi/frescobaldi.SlackBuild
index ad85248c4428..6b9dae429f49 100644
--- a/graphics/frescobaldi/frescobaldi.SlackBuild
+++ b/graphics/frescobaldi/frescobaldi.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for <frescobaldi>
# Written by Michales Michaloudes korgie@gmail.com
diff --git a/graphics/fritzing/fritzing.SlackBuild b/graphics/fritzing/fritzing.SlackBuild
index 5f8d2436a8da..f3516d40ddff 100644
--- a/graphics/fritzing/fritzing.SlackBuild
+++ b/graphics/fritzing/fritzing.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Fritzing
# Electronic Prototyping Software
diff --git a/graphics/fyre/fyre.SlackBuild b/graphics/fyre/fyre.SlackBuild
index c343dc10d56c..af0ae8a2ace7 100644
--- a/graphics/fyre/fyre.SlackBuild
+++ b/graphics/fyre/fyre.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for fyre
diff --git a/graphics/g3dviewer/g3dviewer.SlackBuild b/graphics/g3dviewer/g3dviewer.SlackBuild
index 4375612ba1ad..42d4e9fd97f3 100644
--- a/graphics/g3dviewer/g3dviewer.SlackBuild
+++ b/graphics/g3dviewer/g3dviewer.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for g3dviewer
diff --git a/graphics/gallery/gallery.SlackBuild b/graphics/gallery/gallery.SlackBuild
index 2b4f36875172..2a9109c38da7 100644
--- a/graphics/gallery/gallery.SlackBuild
+++ b/graphics/gallery/gallery.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware Package Build Script for gallery3
# Home Page http://galleryproject.org
diff --git a/graphics/gbdfed/gbdfed.SlackBuild b/graphics/gbdfed/gbdfed.SlackBuild
index 5e0480ce18b3..a57fa2b067cf 100644
--- a/graphics/gbdfed/gbdfed.SlackBuild
+++ b/graphics/gbdfed/gbdfed.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gbdfed
# Written by Kyle Guinn <elyk03@gmail.com>
diff --git a/graphics/gcolor2/gcolor2.SlackBuild b/graphics/gcolor2/gcolor2.SlackBuild
index abde646cf70d..2a4832a3a4fa 100644
--- a/graphics/gcolor2/gcolor2.SlackBuild
+++ b/graphics/gcolor2/gcolor2.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gcolor2
#
diff --git a/graphics/gdk-pixbuf-psd/gdk-pixbuf-psd.SlackBuild b/graphics/gdk-pixbuf-psd/gdk-pixbuf-psd.SlackBuild
index 206c20e956d9..14ca3b0c7305 100644
--- a/graphics/gdk-pixbuf-psd/gdk-pixbuf-psd.SlackBuild
+++ b/graphics/gdk-pixbuf-psd/gdk-pixbuf-psd.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gdk-pixbuf-psd
diff --git a/graphics/gifsicle/gifsicle.SlackBuild b/graphics/gifsicle/gifsicle.SlackBuild
index e10ad39025f2..9f835325e8a1 100644
--- a/graphics/gifsicle/gifsicle.SlackBuild
+++ b/graphics/gifsicle/gifsicle.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gifsicle
diff --git a/graphics/gimagereader/gimagereader.SlackBuild b/graphics/gimagereader/gimagereader.SlackBuild
index 8cf3197e8d27..1d9c303dd234 100644
--- a/graphics/gimagereader/gimagereader.SlackBuild
+++ b/graphics/gimagereader/gimagereader.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gimagereader
diff --git a/graphics/gimp-feca_hdr-plugin/gimp-feca_hdr-plugin.SlackBuild b/graphics/gimp-feca_hdr-plugin/gimp-feca_hdr-plugin.SlackBuild
index a8a6aec4efbd..0c4b9fcb131b 100644
--- a/graphics/gimp-feca_hdr-plugin/gimp-feca_hdr-plugin.SlackBuild
+++ b/graphics/gimp-feca_hdr-plugin/gimp-feca_hdr-plugin.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for <feca_hdr>
diff --git a/graphics/gimp-lqr-plugin/gimp-lqr-plugin.SlackBuild b/graphics/gimp-lqr-plugin/gimp-lqr-plugin.SlackBuild
index 0918a488d7b3..5c16aef7733f 100644
--- a/graphics/gimp-lqr-plugin/gimp-lqr-plugin.SlackBuild
+++ b/graphics/gimp-lqr-plugin/gimp-lqr-plugin.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
#
# Slackware build script for gimp-lqr-plugin
#
diff --git a/graphics/gimp-plugin-bimp/gimp-plugin-bimp.SlackBuild b/graphics/gimp-plugin-bimp/gimp-plugin-bimp.SlackBuild
index 3f2f259a4a85..3861db588201 100644
--- a/graphics/gimp-plugin-bimp/gimp-plugin-bimp.SlackBuild
+++ b/graphics/gimp-plugin-bimp/gimp-plugin-bimp.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gimp-plugin-bimp
#
diff --git a/graphics/gimp-plugin-export-layers/gimp-plugin-export-layers.SlackBuild b/graphics/gimp-plugin-export-layers/gimp-plugin-export-layers.SlackBuild
index 7f4ea08ba741..4f8606342285 100644
--- a/graphics/gimp-plugin-export-layers/gimp-plugin-export-layers.SlackBuild
+++ b/graphics/gimp-plugin-export-layers/gimp-plugin-export-layers.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gimp-plugin-export-layers
diff --git a/graphics/gimp-wideangle-plugin/gimp-wideangle-plugin.SlackBuild b/graphics/gimp-wideangle-plugin/gimp-wideangle-plugin.SlackBuild
index 6ba621c72f81..ac67d5680e54 100644
--- a/graphics/gimp-wideangle-plugin/gimp-wideangle-plugin.SlackBuild
+++ b/graphics/gimp-wideangle-plugin/gimp-wideangle-plugin.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for <wideangle>
# Written by Michales Michaloudes korgie@gmail.com
diff --git a/graphics/gliv/gliv.SlackBuild b/graphics/gliv/gliv.SlackBuild
index bb1eb58c01bd..ad0a62dee058 100644
--- a/graphics/gliv/gliv.SlackBuild
+++ b/graphics/gliv/gliv.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gliv
# Written by Sebastián Salazar Molina <ssalazar@orangepeople.cl>
diff --git a/graphics/gmic/gmic.SlackBuild b/graphics/gmic/gmic.SlackBuild
index ccc1ca09b880..844f9d3e8e8e 100644
--- a/graphics/gmic/gmic.SlackBuild
+++ b/graphics/gmic/gmic.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Copyright 2019 Giorgio Peron <giorgio.peron@gmail.com>, Belluno, Italy
# All rights reserved.
diff --git a/graphics/gnofract4d/gnofract4d.SlackBuild b/graphics/gnofract4d/gnofract4d.SlackBuild
index e78829d63cce..3ef504bdfa6c 100644
--- a/graphics/gnofract4d/gnofract4d.SlackBuild
+++ b/graphics/gnofract4d/gnofract4d.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gnofract4d
diff --git a/graphics/gnome-themes-extras/gnome-themes-extras.SlackBuild b/graphics/gnome-themes-extras/gnome-themes-extras.SlackBuild
index 8a9fe9fb849a..9dda8f6be0e9 100644
--- a/graphics/gnome-themes-extras/gnome-themes-extras.SlackBuild
+++ b/graphics/gnome-themes-extras/gnome-themes-extras.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gnome-themes-extras
# Written by Arvydas Sidorenko (asido4@gmail.com)
diff --git a/graphics/gnome-web-photo/gnome-web-photo.SlackBuild b/graphics/gnome-web-photo/gnome-web-photo.SlackBuild
index b1cfadbedaa0..521298a65ad1 100644
--- a/graphics/gnome-web-photo/gnome-web-photo.SlackBuild
+++ b/graphics/gnome-web-photo/gnome-web-photo.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for GNOME Web Photo
diff --git a/graphics/goocanvas/goocanvas.SlackBuild b/graphics/goocanvas/goocanvas.SlackBuild
index d20f7083336a..fa2457991ba1 100644
--- a/graphics/goocanvas/goocanvas.SlackBuild
+++ b/graphics/goocanvas/goocanvas.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Copyright 2009, Jonathan Larsen (agentc0re), SLC, UT
# Contact Info: agentc0re 'AT' learnix 'DOT' net
diff --git a/graphics/goocanvas2/goocanvas2.SlackBuild b/graphics/goocanvas2/goocanvas2.SlackBuild
index e033f224c452..056e786f0ac3 100644
--- a/graphics/goocanvas2/goocanvas2.SlackBuild
+++ b/graphics/goocanvas2/goocanvas2.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Copyright 2018 Willy Sudiarto Raharjo <willysr@slackbuilds.org>
# All rights reserved.
diff --git a/graphics/gource/gource.SlackBuild b/graphics/gource/gource.SlackBuild
index 295a723014bb..099d0f6ecf31 100644
--- a/graphics/gource/gource.SlackBuild
+++ b/graphics/gource/gource.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gource
diff --git a/graphics/gpaint/gpaint.SlackBuild b/graphics/gpaint/gpaint.SlackBuild
index 49b876e1330c..27123cfb96bb 100644
--- a/graphics/gpaint/gpaint.SlackBuild
+++ b/graphics/gpaint/gpaint.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gpaint
diff --git a/graphics/gpicview/gpicview.SlackBuild b/graphics/gpicview/gpicview.SlackBuild
index 03d03ca026e4..13409fad1b78 100644
--- a/graphics/gpicview/gpicview.SlackBuild
+++ b/graphics/gpicview/gpicview.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# slackware build script for gpicview
# Written Evandro Alves Rodrigues evandrofisico@gmail.com
diff --git a/graphics/gpscorrelate/gpscorrelate.SlackBuild b/graphics/gpscorrelate/gpscorrelate.SlackBuild
index 2dc37fcf81e1..8772de1c9c34 100644
--- a/graphics/gpscorrelate/gpscorrelate.SlackBuild
+++ b/graphics/gpscorrelate/gpscorrelate.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gpscorrelate
diff --git a/graphics/grafx2/grafx2.SlackBuild b/graphics/grafx2/grafx2.SlackBuild
index 3f4aa6c06763..444e9704e738 100644
--- a/graphics/grafx2/grafx2.SlackBuild
+++ b/graphics/grafx2/grafx2.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for GrafX2
diff --git a/graphics/graph-easy/graph-easy.SlackBuild b/graphics/graph-easy/graph-easy.SlackBuild
index fb56a9660af4..c11b46d89f8b 100644
--- a/graphics/graph-easy/graph-easy.SlackBuild
+++ b/graphics/graph-easy/graph-easy.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for graph-easy
diff --git a/graphics/graphviz/graphviz.SlackBuild b/graphics/graphviz/graphviz.SlackBuild
index 7909f5b0ada5..19f258b6259a 100644
--- a/graphics/graphviz/graphviz.SlackBuild
+++ b/graphics/graphviz/graphviz.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for graphviz
diff --git a/graphics/gscan2pdf/gscan2pdf.SlackBuild b/graphics/gscan2pdf/gscan2pdf.SlackBuild
index 2f27d18337d1..886a38325165 100644
--- a/graphics/gscan2pdf/gscan2pdf.SlackBuild
+++ b/graphics/gscan2pdf/gscan2pdf.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gscanpdf
diff --git a/graphics/gthumb/gthumb.SlackBuild b/graphics/gthumb/gthumb.SlackBuild
index 06a93ceb32a0..60c37ce073a8 100644
--- a/graphics/gthumb/gthumb.SlackBuild
+++ b/graphics/gthumb/gthumb.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for gthumb
diff --git a/graphics/gtkam/gtkam.SlackBuild b/graphics/gtkam/gtkam.SlackBuild
index 757be79e4e33..9eb711908d41 100644
--- a/graphics/gtkam/gtkam.SlackBuild
+++ b/graphics/gtkam/gtkam.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware Build Script for gtkam
diff --git a/graphics/heif-gimp-plugin/heif-gimp-plugin.SlackBuild b/graphics/heif-gimp-plugin/heif-gimp-plugin.SlackBuild
index 6287e24f73ae..ee5108a98c38 100644
--- a/graphics/heif-gimp-plugin/heif-gimp-plugin.SlackBuild
+++ b/graphics/heif-gimp-plugin/heif-gimp-plugin.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for heif-gimp-plugin
diff --git a/graphics/hp2xx/hp2xx.SlackBuild b/graphics/hp2xx/hp2xx.SlackBuild
index 8eebc71cecff..cc95f66ee906 100644
--- a/graphics/hp2xx/hp2xx.SlackBuild
+++ b/graphics/hp2xx/hp2xx.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for hp2xx
diff --git a/graphics/hugin/hugin.SlackBuild b/graphics/hugin/hugin.SlackBuild
index 8a31feb9ee73..4475d22c1cc0 100644
--- a/graphics/hugin/hugin.SlackBuild
+++ b/graphics/hugin/hugin.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
#
# Slackware build script for Hugin
#
diff --git a/graphics/icc_profiles/icc_profiles.SlackBuild b/graphics/icc_profiles/icc_profiles.SlackBuild
index bba13c8fd9fe..ae85d4624313 100644
--- a/graphics/icc_profiles/icc_profiles.SlackBuild
+++ b/graphics/icc_profiles/icc_profiles.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Rec709 and related ITU color profiles
# Copyright 2019 Klaatu | Lawrence, NZ | klaatu@member.fsf.org
diff --git a/graphics/icc_profiles_from_eci/icc_profiles_from_eci.SlackBuild b/graphics/icc_profiles_from_eci/icc_profiles_from_eci.SlackBuild
index f8ea3ca6f820..de40032566b7 100644
--- a/graphics/icc_profiles_from_eci/icc_profiles_from_eci.SlackBuild
+++ b/graphics/icc_profiles_from_eci/icc_profiles_from_eci.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for ECI (European Color Initiative) ICC profiles
# Copyright 2019 Klaatu | Lawrence, NZ | klaatu@member.fsf.org
diff --git a/graphics/img2pdf/img2pdf.SlackBuild b/graphics/img2pdf/img2pdf.SlackBuild
index 87a3ae33eb25..6f34a3d19195 100644
--- a/graphics/img2pdf/img2pdf.SlackBuild
+++ b/graphics/img2pdf/img2pdf.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for img2pdf
diff --git a/graphics/imgmin/imgmin.SlackBuild b/graphics/imgmin/imgmin.SlackBuild
index 52c5a2159bd8..8ba96be51285 100644
--- a/graphics/imgmin/imgmin.SlackBuild
+++ b/graphics/imgmin/imgmin.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for imgmin
diff --git a/graphics/imgp/imgp.SlackBuild b/graphics/imgp/imgp.SlackBuild
index ade385c87baf..38ab402de1a7 100644
--- a/graphics/imgp/imgp.SlackBuild
+++ b/graphics/imgp/imgp.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for imgp
diff --git a/graphics/imv/imv.SlackBuild b/graphics/imv/imv.SlackBuild
index a453bf317f35..f3a577d5172f 100644
--- a/graphics/imv/imv.SlackBuild
+++ b/graphics/imv/imv.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for imv
diff --git a/graphics/inkscape/inkscape.SlackBuild b/graphics/inkscape/inkscape.SlackBuild
index d61c6507a87d..747e9a186bdb 100644
--- a/graphics/inkscape/inkscape.SlackBuild
+++ b/graphics/inkscape/inkscape.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for inkscape
diff --git a/graphics/ipe/ipe.SlackBuild b/graphics/ipe/ipe.SlackBuild
index 679ca9e1c505..0991741eb727 100644
--- a/graphics/ipe/ipe.SlackBuild
+++ b/graphics/ipe/ipe.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for ipe
diff --git a/graphics/jUploadr/jUploadr.SlackBuild b/graphics/jUploadr/jUploadr.SlackBuild
index 0d0f24ff3002..be5a7f6b98d9 100644
--- a/graphics/jUploadr/jUploadr.SlackBuild
+++ b/graphics/jUploadr/jUploadr.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for jUploadr
diff --git a/graphics/jhead/jhead.SlackBuild b/graphics/jhead/jhead.SlackBuild
index 8fd2ca880f6d..c8b43a7ff7da 100644
--- a/graphics/jhead/jhead.SlackBuild
+++ b/graphics/jhead/jhead.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for jhead
diff --git a/graphics/jp2a/jp2a.SlackBuild b/graphics/jp2a/jp2a.SlackBuild
index dbe19950c760..1b3ec7cc7f78 100644
--- a/graphics/jp2a/jp2a.SlackBuild
+++ b/graphics/jp2a/jp2a.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for jp2a
diff --git a/graphics/jpeg2ps/jpeg2ps.SlackBuild b/graphics/jpeg2ps/jpeg2ps.SlackBuild
index 79901d918888..cef08282eb30 100644
--- a/graphics/jpeg2ps/jpeg2ps.SlackBuild
+++ b/graphics/jpeg2ps/jpeg2ps.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for jpeg2ps
diff --git a/graphics/jpegoptim/jpegoptim.SlackBuild b/graphics/jpegoptim/jpegoptim.SlackBuild
index f3ae8ab7a445..feb8fac6dd20 100644
--- a/graphics/jpegoptim/jpegoptim.SlackBuild
+++ b/graphics/jpegoptim/jpegoptim.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for jpegoptim
diff --git a/graphics/k3d/k3d.SlackBuild b/graphics/k3d/k3d.SlackBuild
index 1dc959a907cb..95ef5a6891b8 100644
--- a/graphics/k3d/k3d.SlackBuild
+++ b/graphics/k3d/k3d.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for k3d
# 3D modeling and animation software
diff --git a/graphics/kamerka/kamerka.SlackBuild b/graphics/kamerka/kamerka.SlackBuild
index d1a7a5486ed0..76dcadc1ce4e 100644
--- a/graphics/kamerka/kamerka.SlackBuild
+++ b/graphics/kamerka/kamerka.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for kamerka
diff --git a/graphics/kim4/kim4.SlackBuild b/graphics/kim4/kim4.SlackBuild
index 8f5d6d4abdf8..0fa085f2af64 100644
--- a/graphics/kim4/kim4.SlackBuild
+++ b/graphics/kim4/kim4.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for kim4
diff --git a/graphics/kphotoalbum/kphotoalbum.SlackBuild b/graphics/kphotoalbum/kphotoalbum.SlackBuild
index baf39a00b2d8..fe788b052cad 100644
--- a/graphics/kphotoalbum/kphotoalbum.SlackBuild
+++ b/graphics/kphotoalbum/kphotoalbum.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for kphotoalbum
# By default the demo pictures and movie are packaged.
diff --git a/graphics/kuickshow/kuickshow.SlackBuild b/graphics/kuickshow/kuickshow.SlackBuild
index 13d0aac83b1b..32864f500859 100644
--- a/graphics/kuickshow/kuickshow.SlackBuild
+++ b/graphics/kuickshow/kuickshow.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for KuickShow
diff --git a/graphics/lcdtest/lcdtest.SlackBuild b/graphics/lcdtest/lcdtest.SlackBuild
index e39f0c8d2c95..2ac5f232ec4a 100644
--- a/graphics/lcdtest/lcdtest.SlackBuild
+++ b/graphics/lcdtest/lcdtest.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for lcdtest
diff --git a/graphics/lddot/lddot.SlackBuild b/graphics/lddot/lddot.SlackBuild
index e2fec7da316b..04fcadcda963 100644
--- a/graphics/lddot/lddot.SlackBuild
+++ b/graphics/lddot/lddot.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for lddot
diff --git a/graphics/ldglite/ldglite.SlackBuild b/graphics/ldglite/ldglite.SlackBuild
index bb49e120e200..c043dcd900b3 100644
--- a/graphics/ldglite/ldglite.SlackBuild
+++ b/graphics/ldglite/ldglite.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for ldglite:
# a program to view and edit LDraw files
diff --git a/graphics/leocad/leocad.SlackBuild b/graphics/leocad/leocad.SlackBuild
index 104ab6719e78..3f96bbcbbb9a 100644
--- a/graphics/leocad/leocad.SlackBuild
+++ b/graphics/leocad/leocad.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for LeoCAD:
# 3D design program for bricks
diff --git a/graphics/leocad_pieces/leocad_pieces.SlackBuild b/graphics/leocad_pieces/leocad_pieces.SlackBuild
index 083bb3a95edf..518882c500f4 100644
--- a/graphics/leocad_pieces/leocad_pieces.SlackBuild
+++ b/graphics/leocad_pieces/leocad_pieces.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for leocad_pieces, the pieces library needed by
# LeoCAD
diff --git a/graphics/libfpx/libfpx.SlackBuild b/graphics/libfpx/libfpx.SlackBuild
index 4a211382b873..db95ea41c6e3 100644
--- a/graphics/libfpx/libfpx.SlackBuild
+++ b/graphics/libfpx/libfpx.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for libfpx
diff --git a/graphics/libplacebo/libplacebo.SlackBuild b/graphics/libplacebo/libplacebo.SlackBuild
index 69966b664313..2e057a5537cd 100644
--- a/graphics/libplacebo/libplacebo.SlackBuild
+++ b/graphics/libplacebo/libplacebo.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for libplacebo
diff --git a/graphics/librecad/librecad.SlackBuild b/graphics/librecad/librecad.SlackBuild
index 04a128879924..ac65c7d92845 100644
--- a/graphics/librecad/librecad.SlackBuild
+++ b/graphics/librecad/librecad.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for LibreCAD
diff --git a/graphics/lilypond/lilypond.SlackBuild b/graphics/lilypond/lilypond.SlackBuild
index 7576079a9aad..f816be116979 100644
--- a/graphics/lilypond/lilypond.SlackBuild
+++ b/graphics/lilypond/lilypond.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for lilypond
diff --git a/graphics/luminance-hdr/luminance-hdr.SlackBuild b/graphics/luminance-hdr/luminance-hdr.SlackBuild
index 3d0a6ed3b653..29fba97f5b33 100644
--- a/graphics/luminance-hdr/luminance-hdr.SlackBuild
+++ b/graphics/luminance-hdr/luminance-hdr.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Luminance HDR
diff --git a/graphics/luxrender/luxrender.SlackBuild b/graphics/luxrender/luxrender.SlackBuild
index 504fce5cfdbc..fe32e61121f2 100644
--- a/graphics/luxrender/luxrender.SlackBuild
+++ b/graphics/luxrender/luxrender.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for luxrender
diff --git a/graphics/maim/maim.SlackBuild b/graphics/maim/maim.SlackBuild
index 47823ca69787..4fc2980d14fa 100644
--- a/graphics/maim/maim.SlackBuild
+++ b/graphics/maim/maim.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for maim
diff --git a/graphics/makehuman/makehuman.SlackBuild b/graphics/makehuman/makehuman.SlackBuild
index 751228719adc..fc2e1f68f4ae 100644
--- a/graphics/makehuman/makehuman.SlackBuild
+++ b/graphics/makehuman/makehuman.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for makehuman
diff --git a/graphics/mapcrafter/mapcrafter.SlackBuild b/graphics/mapcrafter/mapcrafter.SlackBuild
index 1aefc0485981..b5f77eaf782c 100644
--- a/graphics/mapcrafter/mapcrafter.SlackBuild
+++ b/graphics/mapcrafter/mapcrafter.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for "mapcrafter".
diff --git a/graphics/meh/meh.SlackBuild b/graphics/meh/meh.SlackBuild
index 1527504e9219..c9d5f9b2a7ca 100644
--- a/graphics/meh/meh.SlackBuild
+++ b/graphics/meh/meh.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for meh
diff --git a/graphics/meshlab/meshlab.SlackBuild b/graphics/meshlab/meshlab.SlackBuild
index 9348471b81a9..04abc52ef6d7 100644
--- a/graphics/meshlab/meshlab.SlackBuild
+++ b/graphics/meshlab/meshlab.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for meshlab
diff --git a/graphics/metapixel/metapixel.SlackBuild b/graphics/metapixel/metapixel.SlackBuild
index f680bf172e6e..fe2f44b4bf41 100644
--- a/graphics/metapixel/metapixel.SlackBuild
+++ b/graphics/metapixel/metapixel.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for metapixel
diff --git a/graphics/mftrace/mftrace.SlackBuild b/graphics/mftrace/mftrace.SlackBuild
index b8991b864c60..39ac3bf0679a 100644
--- a/graphics/mftrace/mftrace.SlackBuild
+++ b/graphics/mftrace/mftrace.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for mftrace
diff --git a/graphics/mirage/mirage.SlackBuild b/graphics/mirage/mirage.SlackBuild
index f96e5a2616c3..866dea814997 100644
--- a/graphics/mirage/mirage.SlackBuild
+++ b/graphics/mirage/mirage.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Mirage
diff --git a/graphics/mitsuba-blender/mitsuba-blender.SlackBuild b/graphics/mitsuba-blender/mitsuba-blender.SlackBuild
index 75810f84fbb2..06eb17b99672 100644
--- a/graphics/mitsuba-blender/mitsuba-blender.SlackBuild
+++ b/graphics/mitsuba-blender/mitsuba-blender.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for exporters_mitsuba-blender
# copyright 2015 Klaatu, Wellington NZ
diff --git a/graphics/mitsuba/mitsuba.SlackBuild b/graphics/mitsuba/mitsuba.SlackBuild
index 8485c397eeaa..6b0f52342350 100644
--- a/graphics/mitsuba/mitsuba.SlackBuild
+++ b/graphics/mitsuba/mitsuba.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Klaatu
# Copyright 2014 Klaatu, Wellington NZ
diff --git a/graphics/mlbrot/mlbrot.SlackBuild b/graphics/mlbrot/mlbrot.SlackBuild
index ac63f14d8dd9..3d995e80685a 100644
--- a/graphics/mlbrot/mlbrot.SlackBuild
+++ b/graphics/mlbrot/mlbrot.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for mlbrot
diff --git a/graphics/mozjpeg/mozjpeg.SlackBuild b/graphics/mozjpeg/mozjpeg.SlackBuild
index ecf373272072..18e4067b76aa 100644
--- a/graphics/mozjpeg/mozjpeg.SlackBuild
+++ b/graphics/mozjpeg/mozjpeg.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for mozjpeg
diff --git a/graphics/mtpaint/mtpaint.SlackBuild b/graphics/mtpaint/mtpaint.SlackBuild
index 92bbd42a2928..fcd28995c207 100644
--- a/graphics/mtpaint/mtpaint.SlackBuild
+++ b/graphics/mtpaint/mtpaint.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for mtpaint
diff --git a/graphics/mypaint/mypaint.SlackBuild b/graphics/mypaint/mypaint.SlackBuild
index 12fb75d6bb52..6c1a3420c384 100644
--- a/graphics/mypaint/mypaint.SlackBuild
+++ b/graphics/mypaint/mypaint.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for mypaint
diff --git a/graphics/nomacs/nomacs.SlackBuild b/graphics/nomacs/nomacs.SlackBuild
index 423f012b3de3..208fe1babe94 100644
--- a/graphics/nomacs/nomacs.SlackBuild
+++ b/graphics/nomacs/nomacs.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for nomacs
diff --git a/graphics/nvidia-cg-toolkit/nvidia-cg-toolkit.SlackBuild b/graphics/nvidia-cg-toolkit/nvidia-cg-toolkit.SlackBuild
index c93dac3d8f1c..76254d7a2ba2 100644
--- a/graphics/nvidia-cg-toolkit/nvidia-cg-toolkit.SlackBuild
+++ b/graphics/nvidia-cg-toolkit/nvidia-cg-toolkit.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for nvidia-cg-toolkit
diff --git a/graphics/nvidia-texture-tools/nvidia-texture-tools.SlackBuild b/graphics/nvidia-texture-tools/nvidia-texture-tools.SlackBuild
index 5ae8ba010e04..2debf479e088 100644
--- a/graphics/nvidia-texture-tools/nvidia-texture-tools.SlackBuild
+++ b/graphics/nvidia-texture-tools/nvidia-texture-tools.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for nvidia-texture-tools
diff --git a/graphics/openclipart/openclipart.SlackBuild b/graphics/openclipart/openclipart.SlackBuild
index 664f70e31ce0..fb99c016cae1 100644
--- a/graphics/openclipart/openclipart.SlackBuild
+++ b/graphics/openclipart/openclipart.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for openclipart
diff --git a/graphics/opencollada/opencollada.SlackBuild b/graphics/opencollada/opencollada.SlackBuild
index 1ccfdc1d02d4..c8ed9be5eb49 100644
--- a/graphics/opencollada/opencollada.SlackBuild
+++ b/graphics/opencollada/opencollada.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for opencollada
diff --git a/graphics/opencolorio/opencolorio.SlackBuild b/graphics/opencolorio/opencolorio.SlackBuild
index ee72665c118a..a67c713f398e 100644
--- a/graphics/opencolorio/opencolorio.SlackBuild
+++ b/graphics/opencolorio/opencolorio.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for opencolorio
diff --git a/graphics/openimageio/openimageio.SlackBuild b/graphics/openimageio/openimageio.SlackBuild
index c6a6f33ee4af..b305f952ff03 100644
--- a/graphics/openimageio/openimageio.SlackBuild
+++ b/graphics/openimageio/openimageio.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for openimageio
diff --git a/graphics/openscad-mcad/openscad-mcad.SlackBuild b/graphics/openscad-mcad/openscad-mcad.SlackBuild
index 2834c0043ddb..c4af1be328fe 100644
--- a/graphics/openscad-mcad/openscad-mcad.SlackBuild
+++ b/graphics/openscad-mcad/openscad-mcad.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for openscad-mcad
diff --git a/graphics/openscad/openscad.SlackBuild b/graphics/openscad/openscad.SlackBuild
index 8554e46a1f64..1ae08ac18810 100644
--- a/graphics/openscad/openscad.SlackBuild
+++ b/graphics/openscad/openscad.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for OpenSCAD
diff --git a/graphics/optipng/optipng.SlackBuild b/graphics/optipng/optipng.SlackBuild
index 71db87cedd6f..2a2581948ed3 100644
--- a/graphics/optipng/optipng.SlackBuild
+++ b/graphics/optipng/optipng.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for OptiPNG
# Written by Oleg O. Chukaev <oleg.chukaev@mail.ru>
diff --git a/graphics/oyranos/oyranos.SlackBuild b/graphics/oyranos/oyranos.SlackBuild
index 167e18989f6b..ad63982003de 100644
--- a/graphics/oyranos/oyranos.SlackBuild
+++ b/graphics/oyranos/oyranos.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for oyranos
diff --git a/graphics/paraview/paraview.SlackBuild b/graphics/paraview/paraview.SlackBuild
index f8d8adb3505f..0f16ce769e7a 100644
--- a/graphics/paraview/paraview.SlackBuild
+++ b/graphics/paraview/paraview.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for paraview
diff --git a/graphics/pcx-pixbuf-loader/pcx-pixbuf-loader.SlackBuild b/graphics/pcx-pixbuf-loader/pcx-pixbuf-loader.SlackBuild
index e968158cfd27..fae9e3534f49 100644
--- a/graphics/pcx-pixbuf-loader/pcx-pixbuf-loader.SlackBuild
+++ b/graphics/pcx-pixbuf-loader/pcx-pixbuf-loader.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for pcx-pixbuf-loader
diff --git a/graphics/pdf2png/pdf2png.SlackBuild b/graphics/pdf2png/pdf2png.SlackBuild
index 47231e3e0a69..53cbb62837df 100644
--- a/graphics/pdf2png/pdf2png.SlackBuild
+++ b/graphics/pdf2png/pdf2png.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for pdf2png
diff --git a/graphics/pdf2svg/pdf2svg.SlackBuild b/graphics/pdf2svg/pdf2svg.SlackBuild
index 5d1378d5bcc5..6be71510080d 100644
--- a/graphics/pdf2svg/pdf2svg.SlackBuild
+++ b/graphics/pdf2svg/pdf2svg.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for pdf2svg
diff --git a/graphics/pencil2d/pencil2d.SlackBuild b/graphics/pencil2d/pencil2d.SlackBuild
index 60e586862768..470bfd042f7e 100644
--- a/graphics/pencil2d/pencil2d.SlackBuild
+++ b/graphics/pencil2d/pencil2d.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for <pencil2d>
#
# Michales (clavisound) Michaloudes korgie@gmail.com <2020>
diff --git a/graphics/pencil3/pencil3.SlackBuild b/graphics/pencil3/pencil3.SlackBuild
index 79650d5415a8..3948e3501d87 100644
--- a/graphics/pencil3/pencil3.SlackBuild
+++ b/graphics/pencil3/pencil3.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for pencil3
diff --git a/graphics/phatch/phatch.SlackBuild b/graphics/phatch/phatch.SlackBuild
index 9f0f1c981f1e..8accdb01befe 100644
--- a/graphics/phatch/phatch.SlackBuild
+++ b/graphics/phatch/phatch.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for phatch
diff --git a/graphics/pho/pho.SlackBuild b/graphics/pho/pho.SlackBuild
index 4e50515065a0..d2ca12fd2ca4 100644
--- a/graphics/pho/pho.SlackBuild
+++ b/graphics/pho/pho.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Pho
diff --git a/graphics/photivo/photivo.SlackBuild b/graphics/photivo/photivo.SlackBuild
index 549717278c13..3efdb4a437fd 100644
--- a/graphics/photivo/photivo.SlackBuild
+++ b/graphics/photivo/photivo.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Photivo
diff --git a/graphics/photoqt/photoqt.SlackBuild b/graphics/photoqt/photoqt.SlackBuild
index 5c87a6726b8e..bf4dc72b391d 100644
--- a/graphics/photoqt/photoqt.SlackBuild
+++ b/graphics/photoqt/photoqt.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for photoqt
diff --git a/graphics/phototonic/phototonic.SlackBuild b/graphics/phototonic/phototonic.SlackBuild
index 615ce4883467..9afa4823814b 100644
--- a/graphics/phototonic/phototonic.SlackBuild
+++ b/graphics/phototonic/phototonic.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for phototonic
diff --git a/graphics/plotutils/plotutils.SlackBuild b/graphics/plotutils/plotutils.SlackBuild
index 897f84f343c8..f1b5ae590468 100644
--- a/graphics/plotutils/plotutils.SlackBuild
+++ b/graphics/plotutils/plotutils.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for GNU plotutils
diff --git a/graphics/png2ico/png2ico.SlackBuild b/graphics/png2ico/png2ico.SlackBuild
index e164d06bcea8..fdffbfd1a992 100644
--- a/graphics/png2ico/png2ico.SlackBuild
+++ b/graphics/png2ico/png2ico.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for png2ico
diff --git a/graphics/pngcrush/pngcrush.SlackBuild b/graphics/pngcrush/pngcrush.SlackBuild
index c63d7699b8d8..909adad51ab1 100644
--- a/graphics/pngcrush/pngcrush.SlackBuild
+++ b/graphics/pngcrush/pngcrush.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for pngcrush
diff --git a/graphics/pngquant/pngquant.SlackBuild b/graphics/pngquant/pngquant.SlackBuild
index 776d7bf17032..ce281b10d1ba 100644
--- a/graphics/pngquant/pngquant.SlackBuild
+++ b/graphics/pngquant/pngquant.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for pngquant
diff --git a/graphics/potrace/potrace.SlackBuild b/graphics/potrace/potrace.SlackBuild
index e98cf3a4fc7a..304f8957063b 100644
--- a/graphics/potrace/potrace.SlackBuild
+++ b/graphics/potrace/potrace.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for potrace
diff --git a/graphics/povray/povray.SlackBuild b/graphics/povray/povray.SlackBuild
index 9cd52fcf77d3..c788f82c720a 100644
--- a/graphics/povray/povray.SlackBuild
+++ b/graphics/povray/povray.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for povray:
# the Persistence of Vision Raytracer
diff --git a/graphics/pqiv/pqiv.SlackBuild b/graphics/pqiv/pqiv.SlackBuild
index 21ec1222515b..5b173750286f 100644
--- a/graphics/pqiv/pqiv.SlackBuild
+++ b/graphics/pqiv/pqiv.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for pqiv
diff --git a/graphics/pr0ntools/pr0ntools.SlackBuild b/graphics/pr0ntools/pr0ntools.SlackBuild
index 7e93f5657a66..dd9efedef6cb 100644
--- a/graphics/pr0ntools/pr0ntools.SlackBuild
+++ b/graphics/pr0ntools/pr0ntools.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for pr0ntools
diff --git a/graphics/psftools/psftools.SlackBuild b/graphics/psftools/psftools.SlackBuild
index 1167b8bbe49c..6069cb19fdb0 100644
--- a/graphics/psftools/psftools.SlackBuild
+++ b/graphics/psftools/psftools.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for psftools
diff --git a/graphics/pyformex/pyformex.SlackBuild b/graphics/pyformex/pyformex.SlackBuild
index 26bdcae5d7e8..89c15e84921e 100644
--- a/graphics/pyformex/pyformex.SlackBuild
+++ b/graphics/pyformex/pyformex.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for pyformex
diff --git a/graphics/pygifme/pygifme.SlackBuild b/graphics/pygifme/pygifme.SlackBuild
index 75b57e18aba2..055bd4393a10 100644
--- a/graphics/pygifme/pygifme.SlackBuild
+++ b/graphics/pygifme/pygifme.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for pygifme
diff --git a/graphics/pygraphviz/pygraphviz.SlackBuild b/graphics/pygraphviz/pygraphviz.SlackBuild
index 2d8c482772b1..aae35c715ae9 100644
--- a/graphics/pygraphviz/pygraphviz.SlackBuild
+++ b/graphics/pygraphviz/pygraphviz.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for pygraphviz
diff --git a/graphics/qcad/qcad.SlackBuild b/graphics/qcad/qcad.SlackBuild
index 22c24cfc57ff..25cebea19ae2 100644
--- a/graphics/qcad/qcad.SlackBuild
+++ b/graphics/qcad/qcad.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for qcad
diff --git a/graphics/qcomicbook/qcomicbook.SlackBuild b/graphics/qcomicbook/qcomicbook.SlackBuild
index 44ca87d71f8f..124497102ae5 100644
--- a/graphics/qcomicbook/qcomicbook.SlackBuild
+++ b/graphics/qcomicbook/qcomicbook.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for QComicBook:
# a program to visualize digitalized comic books
diff --git a/graphics/qelectrotech/qelectrotech.SlackBuild b/graphics/qelectrotech/qelectrotech.SlackBuild
index 6e17e5146710..206680a19f1f 100644
--- a/graphics/qelectrotech/qelectrotech.SlackBuild
+++ b/graphics/qelectrotech/qelectrotech.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for QElectroTech
diff --git a/graphics/qiv/qiv.SlackBuild b/graphics/qiv/qiv.SlackBuild
index 0320a8170859..1480ca41a17a 100644
--- a/graphics/qiv/qiv.SlackBuild
+++ b/graphics/qiv/qiv.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for qiv
diff --git a/graphics/ralcgm/ralcgm.SlackBuild b/graphics/ralcgm/ralcgm.SlackBuild
index 28c95aae9a9b..dae89526ab62 100644
--- a/graphics/ralcgm/ralcgm.SlackBuild
+++ b/graphics/ralcgm/ralcgm.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for ralcgm
diff --git a/graphics/raw-thumbnailer/raw-thumbnailer.SlackBuild b/graphics/raw-thumbnailer/raw-thumbnailer.SlackBuild
index cda430967188..a3c91a41a772 100644
--- a/graphics/raw-thumbnailer/raw-thumbnailer.SlackBuild
+++ b/graphics/raw-thumbnailer/raw-thumbnailer.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for raw-thumbnailer
# Copyright 2007-2011 Michiel van Wessem, Manchester, United Kingdom
diff --git a/graphics/rawstudio/rawstudio.SlackBuild b/graphics/rawstudio/rawstudio.SlackBuild
index 7a928498aa18..4ce728464d85 100644
--- a/graphics/rawstudio/rawstudio.SlackBuild
+++ b/graphics/rawstudio/rawstudio.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware Package Build Script for rawstudio
# Home Page http://rawstudio.org/
diff --git a/graphics/rawtherapee/rawtherapee.SlackBuild b/graphics/rawtherapee/rawtherapee.SlackBuild
index 13101b5bda59..10926c76ad80 100644
--- a/graphics/rawtherapee/rawtherapee.SlackBuild
+++ b/graphics/rawtherapee/rawtherapee.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for rawtherapee
diff --git a/graphics/renderdoc/renderdoc.SlackBuild b/graphics/renderdoc/renderdoc.SlackBuild
index 573f72340384..04b20f60073a 100644
--- a/graphics/renderdoc/renderdoc.SlackBuild
+++ b/graphics/renderdoc/renderdoc.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for renderdoc
diff --git a/graphics/resynthesizer/resynthesizer.SlackBuild b/graphics/resynthesizer/resynthesizer.SlackBuild
index c67235f25025..7a73b6525d3d 100644
--- a/graphics/resynthesizer/resynthesizer.SlackBuild
+++ b/graphics/resynthesizer/resynthesizer.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for the resynthesizer GIMP plug-in.
#
diff --git a/graphics/ristretto/ristretto.SlackBuild b/graphics/ristretto/ristretto.SlackBuild
index 9f39310db60a..9dcc0d7a26cf 100644
--- a/graphics/ristretto/ristretto.SlackBuild
+++ b/graphics/ristretto/ristretto.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for ristretto
diff --git a/graphics/scantailor-advanced/scantailor-advanced.SlackBuild b/graphics/scantailor-advanced/scantailor-advanced.SlackBuild
index a726ce6261fd..c042841c8def 100644
--- a/graphics/scantailor-advanced/scantailor-advanced.SlackBuild
+++ b/graphics/scantailor-advanced/scantailor-advanced.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for scantailor-advanced
diff --git a/graphics/scour/scour.SlackBuild b/graphics/scour/scour.SlackBuild
index ea5792602435..e3d752eb0f26 100644
--- a/graphics/scour/scour.SlackBuild
+++ b/graphics/scour/scour.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for scour
diff --git a/graphics/screencloud/screencloud.SlackBuild b/graphics/screencloud/screencloud.SlackBuild
index dd0f8222fe76..9df95c6dce50 100644
--- a/graphics/screencloud/screencloud.SlackBuild
+++ b/graphics/screencloud/screencloud.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for ScreenCloud
diff --git a/graphics/screengrab/screengrab.SlackBuild b/graphics/screengrab/screengrab.SlackBuild
index cf6c465bd48a..97b9900f598c 100644
--- a/graphics/screengrab/screengrab.SlackBuild
+++ b/graphics/screengrab/screengrab.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for screengrab
# Copyright 2013-2020 Matteo Bernardini <ponce@slackbuilds.org>, Pisa, Italy
diff --git a/graphics/scrot/scrot.SlackBuild b/graphics/scrot/scrot.SlackBuild
index 54acabeb3cb9..d8219bb59743 100644
--- a/graphics/scrot/scrot.SlackBuild
+++ b/graphics/scrot/scrot.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for scrot
diff --git a/graphics/separate+/separate+.SlackBuild b/graphics/separate+/separate+.SlackBuild
index 8849f1fb160f..ebc48dd0a7c9 100644
--- a/graphics/separate+/separate+.SlackBuild
+++ b/graphics/separate+/separate+.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for separate+
# Written by klaatu at klaatu at hackerpublicradio.org
diff --git a/graphics/shalbum/shalbum.SlackBuild b/graphics/shalbum/shalbum.SlackBuild
index e4088462256d..683faa8c65c0 100644
--- a/graphics/shalbum/shalbum.SlackBuild
+++ b/graphics/shalbum/shalbum.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for shalbum
diff --git a/graphics/shotwell/shotwell.SlackBuild b/graphics/shotwell/shotwell.SlackBuild
index f65dd0ca8959..35c641afb386 100644
--- a/graphics/shotwell/shotwell.SlackBuild
+++ b/graphics/shotwell/shotwell.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Shotwell
diff --git a/graphics/shutter/shutter.SlackBuild b/graphics/shutter/shutter.SlackBuild
index bf838c3ba7df..f683da14dde8 100644
--- a/graphics/shutter/shutter.SlackBuild
+++ b/graphics/shutter/shutter.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for shutter
diff --git a/graphics/simple-scan/simple-scan.SlackBuild b/graphics/simple-scan/simple-scan.SlackBuild
index d8ac34317daa..6390278865ce 100644
--- a/graphics/simple-scan/simple-scan.SlackBuild
+++ b/graphics/simple-scan/simple-scan.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware Package Build Script for simple-scan
# Home Page https://launchpad.net/simple-scan
diff --git a/graphics/sng/sng.SlackBuild b/graphics/sng/sng.SlackBuild
index 1f1abda985f6..824ba369b36c 100644
--- a/graphics/sng/sng.SlackBuild
+++ b/graphics/sng/sng.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for sng
diff --git a/graphics/svp/svp.SlackBuild b/graphics/svp/svp.SlackBuild
index 1a1aca65f488..631946e4e064 100644
--- a/graphics/svp/svp.SlackBuild
+++ b/graphics/svp/svp.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for svp
diff --git a/graphics/sxiv/sxiv.SlackBuild b/graphics/sxiv/sxiv.SlackBuild
index 74af4635e86b..1f23445089b8 100644
--- a/graphics/sxiv/sxiv.SlackBuild
+++ b/graphics/sxiv/sxiv.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for sxiv
diff --git a/graphics/tclblt/tclblt.SlackBuild b/graphics/tclblt/tclblt.SlackBuild
index ccb159e6c7d8..78710b2b8c07 100644
--- a/graphics/tclblt/tclblt.SlackBuild
+++ b/graphics/tclblt/tclblt.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for tclblt
diff --git a/graphics/teighafileconverter/teighafileconverter.SlackBuild b/graphics/teighafileconverter/teighafileconverter.SlackBuild
index e74c00cf10f5..e8f150bfcd23 100644
--- a/graphics/teighafileconverter/teighafileconverter.SlackBuild
+++ b/graphics/teighafileconverter/teighafileconverter.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for TeighaFileConverter
diff --git a/graphics/teighaviewer/teighaviewer.SlackBuild b/graphics/teighaviewer/teighaviewer.SlackBuild
index 61d361d13530..a0a0ddafb809 100644
--- a/graphics/teighaviewer/teighaviewer.SlackBuild
+++ b/graphics/teighaviewer/teighaviewer.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for teighaviewer
diff --git a/graphics/tesseract/tesseract.SlackBuild b/graphics/tesseract/tesseract.SlackBuild
index 9c4bf01262af..fce86da051b8 100644
--- a/graphics/tesseract/tesseract.SlackBuild
+++ b/graphics/tesseract/tesseract.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for tesseract
# Copyright 2009-2010 Pierre Cazenave <pwcazenave {at} gmail [dot] com>
diff --git a/graphics/textext/textext.SlackBuild b/graphics/textext/textext.SlackBuild
index 0e765996aa57..119d445eccd0 100644
--- a/graphics/textext/textext.SlackBuild
+++ b/graphics/textext/textext.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for textext
diff --git a/graphics/tgif-QPL/tgif-QPL.SlackBuild b/graphics/tgif-QPL/tgif-QPL.SlackBuild
index aa7dfdf07218..e911cb1d561f 100644
--- a/graphics/tgif-QPL/tgif-QPL.SlackBuild
+++ b/graphics/tgif-QPL/tgif-QPL.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for tgif-QPL
diff --git a/graphics/tintii/tintii.SlackBuild b/graphics/tintii/tintii.SlackBuild
index 98d0b68d30d0..0ec2842e5dcd 100644
--- a/graphics/tintii/tintii.SlackBuild
+++ b/graphics/tintii/tintii.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for tintii
diff --git a/graphics/tkpng/tkpng.SlackBuild b/graphics/tkpng/tkpng.SlackBuild
index e96bd76236ab..821576904d5a 100644
--- a/graphics/tkpng/tkpng.SlackBuild
+++ b/graphics/tkpng/tkpng.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for tkpng
diff --git a/graphics/triangulizor/triangulizor.SlackBuild b/graphics/triangulizor/triangulizor.SlackBuild
index f9a3c4f68154..2cfd33793da3 100644
--- a/graphics/triangulizor/triangulizor.SlackBuild
+++ b/graphics/triangulizor/triangulizor.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for triangulizor
diff --git a/graphics/trimage/trimage.SlackBuild b/graphics/trimage/trimage.SlackBuild
index 2014aed4cd4a..4eb85893e6f9 100644
--- a/graphics/trimage/trimage.SlackBuild
+++ b/graphics/trimage/trimage.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for Trimage
diff --git a/graphics/ttyload/ttyload.SlackBuild b/graphics/ttyload/ttyload.SlackBuild
index d1052cf19513..c04f5ad87304 100644
--- a/graphics/ttyload/ttyload.SlackBuild
+++ b/graphics/ttyload/ttyload.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for ttyload
diff --git a/graphics/tuxpaint-stamps/tuxpaint-stamps.SlackBuild b/graphics/tuxpaint-stamps/tuxpaint-stamps.SlackBuild
index 7ef94508f53c..190a46c6773d 100644
--- a/graphics/tuxpaint-stamps/tuxpaint-stamps.SlackBuild
+++ b/graphics/tuxpaint-stamps/tuxpaint-stamps.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for tuxpaint-stamps
diff --git a/graphics/tuxpaint/tuxpaint.SlackBuild b/graphics/tuxpaint/tuxpaint.SlackBuild
index 92dccd38b896..b8e6262fd2e6 100644
--- a/graphics/tuxpaint/tuxpaint.SlackBuild
+++ b/graphics/tuxpaint/tuxpaint.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for tuxpaint
diff --git a/graphics/ueberzug/ueberzug.SlackBuild b/graphics/ueberzug/ueberzug.SlackBuild
index 1885df66975a..7a26c622f8b6 100644
--- a/graphics/ueberzug/ueberzug.SlackBuild
+++ b/graphics/ueberzug/ueberzug.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for ueberzug
diff --git a/graphics/ufraw/ufraw.SlackBuild b/graphics/ufraw/ufraw.SlackBuild
index 8e8735b2c8eb..11b227a16e64 100644
--- a/graphics/ufraw/ufraw.SlackBuild
+++ b/graphics/ufraw/ufraw.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware Package Build Script for UFRaw (Unidentified Flying Raw)
# Home Page http://ufraw.sourceforge.net/
diff --git a/graphics/uniconvertor/uniconvertor.SlackBuild b/graphics/uniconvertor/uniconvertor.SlackBuild
index 1c71ce72b40a..0c490addbbc5 100644
--- a/graphics/uniconvertor/uniconvertor.SlackBuild
+++ b/graphics/uniconvertor/uniconvertor.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for uniconvertor
diff --git a/graphics/unpaper/unpaper.SlackBuild b/graphics/unpaper/unpaper.SlackBuild
index 96c606e8e38b..0773fa67cd51 100644
--- a/graphics/unpaper/unpaper.SlackBuild
+++ b/graphics/unpaper/unpaper.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for unpaper
diff --git a/graphics/urbanlightscape/urbanlightscape.SlackBuild b/graphics/urbanlightscape/urbanlightscape.SlackBuild
index 970d4129da32..6d193590c7e5 100644
--- a/graphics/urbanlightscape/urbanlightscape.SlackBuild
+++ b/graphics/urbanlightscape/urbanlightscape.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for urbanlightscape
diff --git a/graphics/veles/veles.SlackBuild b/graphics/veles/veles.SlackBuild
index 7fabfac30d1e..84d14b792a11 100644
--- a/graphics/veles/veles.SlackBuild
+++ b/graphics/veles/veles.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for veles
diff --git a/graphics/viewnior/viewnior.SlackBuild b/graphics/viewnior/viewnior.SlackBuild
index 93ea00019a77..7739cb66d19f 100644
--- a/graphics/viewnior/viewnior.SlackBuild
+++ b/graphics/viewnior/viewnior.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
#
# Slackware build script for viewnior.
#
diff --git a/graphics/vips/vips.SlackBuild b/graphics/vips/vips.SlackBuild
index 1512b752c070..e2e1ad373cf9 100644
--- a/graphics/vips/vips.SlackBuild
+++ b/graphics/vips/vips.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
#
# Slackware Package Build Script for vips
# Build script by <DIO> igor29768 @ gmail.com
diff --git a/graphics/vsxu/vsxu.SlackBuild b/graphics/vsxu/vsxu.SlackBuild
index 3323290a1bf0..5ad1ae217155 100644
--- a/graphics/vsxu/vsxu.SlackBuild
+++ b/graphics/vsxu/vsxu.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for vsxu
diff --git a/graphics/vuescan/vuescan.SlackBuild b/graphics/vuescan/vuescan.SlackBuild
index 61a4954a3215..2768721c08da 100644
--- a/graphics/vuescan/vuescan.SlackBuild
+++ b/graphics/vuescan/vuescan.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for vuescan
diff --git a/graphics/wavelet-denoise/wavelet-denoise.SlackBuild b/graphics/wavelet-denoise/wavelet-denoise.SlackBuild
index c0f7bac7f740..21f89239a3cc 100644
--- a/graphics/wavelet-denoise/wavelet-denoise.SlackBuild
+++ b/graphics/wavelet-denoise/wavelet-denoise.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for wavelet-denoise
# Originally written by klaatu for separate+
diff --git a/graphics/webp-pixbuf-loader/webp-pixbuf-loader.SlackBuild b/graphics/webp-pixbuf-loader/webp-pixbuf-loader.SlackBuild
index d93e42fb708b..c885ee8c9ff5 100644
--- a/graphics/webp-pixbuf-loader/webp-pixbuf-loader.SlackBuild
+++ b/graphics/webp-pixbuf-loader/webp-pixbuf-loader.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for webp-pixbuf-loader
diff --git a/graphics/white_dune/white_dune.SlackBuild b/graphics/white_dune/white_dune.SlackBuild
index 40df579d1075..ded067fd860b 100644
--- a/graphics/white_dune/white_dune.SlackBuild
+++ b/graphics/white_dune/white_dune.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for white_dune
diff --git a/graphics/whyteboard/whyteboard.SlackBuild b/graphics/whyteboard/whyteboard.SlackBuild
index ad939eec6eb0..107984cd3b0b 100644
--- a/graphics/whyteboard/whyteboard.SlackBuild
+++ b/graphics/whyteboard/whyteboard.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
#
# Slackware build script for Whyteboard
#
diff --git a/graphics/wine-nine-standalone/wine-nine-standalone.SlackBuild b/graphics/wine-nine-standalone/wine-nine-standalone.SlackBuild
index 5927c3191bf0..a836fb089b3f 100644
--- a/graphics/wine-nine-standalone/wine-nine-standalone.SlackBuild
+++ b/graphics/wine-nine-standalone/wine-nine-standalone.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for wine-nine-standalone
diff --git a/graphics/xbmbrowser/xbmbrowser.SlackBuild b/graphics/xbmbrowser/xbmbrowser.SlackBuild
index 2a1bd8bf088d..88b10801aebe 100644
--- a/graphics/xbmbrowser/xbmbrowser.SlackBuild
+++ b/graphics/xbmbrowser/xbmbrowser.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for xbmbrowser
# Copyright 2012, Bojan Popović, Belgrade, Serbia, <bocke@slackware-srbija.org>
diff --git a/graphics/xcalib/xcalib.SlackBuild b/graphics/xcalib/xcalib.SlackBuild
index 390e121df358..00204f615386 100644
--- a/graphics/xcalib/xcalib.SlackBuild
+++ b/graphics/xcalib/xcalib.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for xcalib
# Copyright 2014 klaatu @member.fsf.org
diff --git a/graphics/xcf-pixbuf-loader/xcf-pixbuf-loader.SlackBuild b/graphics/xcf-pixbuf-loader/xcf-pixbuf-loader.SlackBuild
index b2b38eabecc9..c65928c6a66b 100644
--- a/graphics/xcf-pixbuf-loader/xcf-pixbuf-loader.SlackBuild
+++ b/graphics/xcf-pixbuf-loader/xcf-pixbuf-loader.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for xcf-pixbuf-loader
diff --git a/graphics/xcur2png/xcur2png.SlackBuild b/graphics/xcur2png/xcur2png.SlackBuild
index dd0601c94218..954742488b8e 100644
--- a/graphics/xcur2png/xcur2png.SlackBuild
+++ b/graphics/xcur2png/xcur2png.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for xcur2png
diff --git a/graphics/xdaliclock/xdaliclock.SlackBuild b/graphics/xdaliclock/xdaliclock.SlackBuild
index 2b6484e120b5..386d4a2c7b56 100644
--- a/graphics/xdaliclock/xdaliclock.SlackBuild
+++ b/graphics/xdaliclock/xdaliclock.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for xdaliclock
diff --git a/graphics/xdot/xdot.SlackBuild b/graphics/xdot/xdot.SlackBuild
index 76c4ca34ca45..4314dd46386b 100644
--- a/graphics/xdot/xdot.SlackBuild
+++ b/graphics/xdot/xdot.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for xdot
#
diff --git a/graphics/xfishtank/xfishtank.SlackBuild b/graphics/xfishtank/xfishtank.SlackBuild
index 3d26f6d06b0d..8791e9bcd77e 100644
--- a/graphics/xfishtank/xfishtank.SlackBuild
+++ b/graphics/xfishtank/xfishtank.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for xfishtank
diff --git a/graphics/xli/xli.SlackBuild b/graphics/xli/xli.SlackBuild
index 8a24b38f2a8a..e2aef70449ff 100644
--- a/graphics/xli/xli.SlackBuild
+++ b/graphics/xli/xli.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for xli
diff --git a/graphics/xmedcon/xmedcon.SlackBuild b/graphics/xmedcon/xmedcon.SlackBuild
index 74c04c01e5a2..661a577c1ddc 100644
--- a/graphics/xmedcon/xmedcon.SlackBuild
+++ b/graphics/xmedcon/xmedcon.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
#
# Slackware build script for (X)MedCon
#
diff --git a/graphics/xpe/xpe.SlackBuild b/graphics/xpe/xpe.SlackBuild
index 8593821b7481..b0f1759337b8 100644
--- a/graphics/xpe/xpe.SlackBuild
+++ b/graphics/xpe/xpe.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for xpe:
# the neXtgen Povray Editor
diff --git a/graphics/xzgv/xzgv.SlackBuild b/graphics/xzgv/xzgv.SlackBuild
index 5edf65770d27..8b04e3e02b47 100644
--- a/graphics/xzgv/xzgv.SlackBuild
+++ b/graphics/xzgv/xzgv.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for xzgv
diff --git a/graphics/yacreader/yacreader.SlackBuild b/graphics/yacreader/yacreader.SlackBuild
index ec47be98dea5..ca9b302389a6 100644
--- a/graphics/yacreader/yacreader.SlackBuild
+++ b/graphics/yacreader/yacreader.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for yacreader
diff --git a/graphics/yafaray-blender/yafaray-blender.SlackBuild b/graphics/yafaray-blender/yafaray-blender.SlackBuild
index f72c5b24fe14..1cb710d30069 100644
--- a/graphics/yafaray-blender/yafaray-blender.SlackBuild
+++ b/graphics/yafaray-blender/yafaray-blender.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for yafaray-blender
diff --git a/graphics/yafaray/yafaray.SlackBuild b/graphics/yafaray/yafaray.SlackBuild
index 9b2ee9e9dd61..cc3701c6bc89 100644
--- a/graphics/yafaray/yafaray.SlackBuild
+++ b/graphics/yafaray/yafaray.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for yafaray
diff --git a/graphics/yagf/yagf.SlackBuild b/graphics/yagf/yagf.SlackBuild
index ebc458a9c9b5..0898d6e3ee64 100644
--- a/graphics/yagf/yagf.SlackBuild
+++ b/graphics/yagf/yagf.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for yagf
diff --git a/graphics/yed/yed.SlackBuild b/graphics/yed/yed.SlackBuild
index d6332575dcb9..e7999123ed41 100644
--- a/graphics/yed/yed.SlackBuild
+++ b/graphics/yed/yed.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for yEd
diff --git a/graphics/yesplz/yesplz.SlackBuild b/graphics/yesplz/yesplz.SlackBuild
index d99ed1dbd32b..63b96a58e2f4 100644
--- a/graphics/yesplz/yesplz.SlackBuild
+++ b/graphics/yesplz/yesplz.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for sigFLUP's yesplz
#
diff --git a/graphics/zbar/zbar.SlackBuild b/graphics/zbar/zbar.SlackBuild
index c614a9a0d249..d1102c7df875 100644
--- a/graphics/zbar/zbar.SlackBuild
+++ b/graphics/zbar/zbar.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for zbar
diff --git a/graphics/zgv/zgv.SlackBuild b/graphics/zgv/zgv.SlackBuild
index d1c082441126..04f2af0b7cc9 100644
--- a/graphics/zgv/zgv.SlackBuild
+++ b/graphics/zgv/zgv.SlackBuild
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# Slackware build script for zgv
# Modified by Luis Henrique <lmello.009@gmail.com>