[unix-history] / bin / diff3

e=
case $1 in
-*)
	e=$1
	shift;;
esac
if test $# = 3 -a -f $1 -a -f $2 -a -f $3
then
	:
else
	echo usage: diff3 file1 file2 file3 1>&2
	exit
fi
trap "rm -f /tmp/d3[ab]$$" 0 1 2 13 15
diff $1 $3 >/tmp/d3a$$
diff $2 $3 >/tmp/d3b$$
/usr/lib/diff3 $e /tmp/d3[ab]$$ $1 $2 $3
Commit	Line	Data
cbbd3f84 KT	1	e=
	2	case $1 in
	3	-*)
	4	e=$1
	5	shift;;
	6	esac
	7	if test $# = 3 -a -f $1 -a -f $2 -a -f $3
	8	then
	9	:
	10	else
	11	echo usage: diff3 file1 file2 file3 1>&2
	12	exit
	13	fi
	14	trap "rm -f /tmp/d3[ab]$$" 0 1 2 13 15
	15	diff $1 $3 >/tmp/d3a$$
	16	diff $2 $3 >/tmp/d3b$$
	17	/usr/lib/diff3 $e /tmp/d3[ab]$$ $1 $2 $3