Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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#!/bin/sh
#
# install - install a program, script, or datafile
# This comes from X11R5; it is not part of GNU.
#
# $XConsortium: install.sh,v 1.2 89/12/18 14:47:22 jim Exp $
#
# This script is compatible with the BSD install script, but was written
# from scratch.
#
# set DOITPROG to echo to test this script
doit="${DOITPROG:-}"
# put in absolute paths if you don't have them in your path; or use env. vars.
mvprog="${MVPROG:-mv}"
cpprog="${CPPROG:-cp}"
chmodprog="${CHMODPROG:-chmod}"
chownprog="${CHOWNPROG:-chown}"
chgrpprog="${CHGRPPROG:-chgrp}"
stripprog="${STRIPPROG:-strip}"
rmprog="${RMPROG:-rm}"
instcmd="$mvprog"
chmodcmd=""
chowncmd=""
chgrpcmd=""
stripcmd=""
rmcmd="$rmprog -f"
src=""
dst=""
while [ x"$1" != x ]; do
case $1 in
-c) instcmd="$cpprog"
shift
continue;;
-m) chmodcmd="$chmodprog $2"
shift
shift
continue;;
-o) chowncmd="$chownprog $2"
shift
shift
continue;;
-g) chgrpcmd="$chgrpprog $2"
shift
shift
continue;;
-s) stripcmd="$stripprog"
shift
continue;;
*) if [ x"$src" = x ]
then
src=$1
else
dst=$1
fi
shift
continue;;
esac
done
if [ x"$src" = x ]
then
echo "install: no input file specified"
exit 1
fi
if [ x"$dst" = x ]
then
echo "install: no destination specified"
exit 1
fi
# if destination is a directory, append the input filename; if your system
# does not like double slashes in filenames, you may need to add some logic
if [ -d $dst ]
then
dst="$dst"/`basename $src`
fi
# get rid of the old one and mode the new one in
$doit $rmcmd $dst
$doit $instcmd $src $dst
# and set any options; do chmod last to preserve setuid bits
if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; fi
if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; fi
if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; fi
if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; fi
exit 0