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#!/bin/sh
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# $Id: instcopy,v 1.3 2002/02/21 22:24:53 giles Exp $
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#
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# Implement a uniform 'install' syntax independent of which of the two
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# "standard" install programs is installed.  Based on ideas in, but not
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# copied from, the GNU fileutils install-sh script.  Usage:
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#	instcopy -c [-m <mode>] <srcfile> (<dstdir>|<dstfile>)
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doit=""
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# Uncomment the following line for testing
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#doit="echo "
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mode=""
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    while true; do
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	case "$1" in
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	    -c) ;;
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	    -m) mode=$2; shift ;;
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	    *) break ;;
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        esac
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    shift; done
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src=$1
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dst=$2
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    if [ $# = 2 -a -f $src ]; then true; else
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	echo "Usage: instcopy -c [-m <mode>] <srcfile> (<dstdir>|<dstfile>)"
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	exit 1
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    fi
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if [ -d $dst ]; then
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    dstdir=`echo $dst | sed -e 's,/$,,'`
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    dst="$dstdir"/`basename $src`
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else
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    dstdir=`echo $dst | sed -e 's,/[^/]*$,,'`
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fi
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dsttmp=$dstdir/#inst.$$#
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$doit cp $src $dsttmp &&
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$doit trap "rm -f $dsttmp" 0 &&
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if [ x"$mode" != x ]; then $doit chmod $mode $dsttmp; else true; fi &&
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$doit rm -f $dst &&
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$doit mv $dsttmp $dst &&
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exit 0