bsdinstall

来自「EPIC IRC客户端。来源于IRCII客户端但做了很多性能和功能的优化。」· 代码 · 共 91 行

#! /bin/sh
#
#	@(#)install.sh	4.5	(Berkeley)	10/12/83
#
cmd=/bin/mv
strip=""
chmod="/bin/chmod 755"
chown=""
chgrp=""
while true ; do
	case $1 in
		-s )	strip="/bin/strip"
			shift
			;;
		-c )	cmd="/bin/cp -p"
			shift
			;;
		-m )	chmod="/bin/chmod $2"
			shift
			shift
			;;
		-o )	chown="/etc/chown -f $2"
			shift
			shift
			;;
		-g )	chgrp="/bin/chgrp -f $2"
			shift
			shift
			;;
		-d )	cmd="/bin/mkdir"
			shift
			;;
		* )	break
			;;
	esac
done

if test ! ${2-""}; then
	echo "install: no destination specified"
	exit 1
fi
if test ${3-""}; then
	echo "install: too many files specified -> $*"
	exit 1
fi
if test $1 = $2 -o $2 = .; then
	echo "install: can't move $1 onto itself"
	exit 1
fi
case $cmd in
/bin/mkdir )
	file=$2/$1
	;;
* )
	if test '!' -f $1; then
		echo "install: can't open $1"
		exit 1
	fi
	if test -d $2; then
		file=$2/$1
	else
		file=$2
	fi
	/bin/rm -f $file
	;;
esac

case $cmd in
/bin/mkdir )
	if test ! -d "$file"; then
		$cmd $file
	fi
	;;
* )
	$cmd $1 $file
	if test -n "$strip"; then
		$strip $file
	fi
	;;
esac

if test -n "$chown"; then
	$chown $file
fi
if test -n "$chgrp"; then
	$chgrp $file
fi
$chmod $file

exit 0