tree 0ee17645f21a92fd4e2faec19d27fbe6837aa1eb
parent e6b3af07cf5488dde5da9bc7f15353c06216e51c
author Michael Forney <mforney@mforney.org> 1463207692 -0700
committer sin <sin@2f30.org> 1463227118 +0100

grep: Fix -v output and exit status

Previously, it printed lines that didn't match some pattern. Instead,
it should print lines that don't match *any* pattern.

Test case:

out=$(echo foo | ./grep -v -e foo -e bar)
if [ "$?" = 1 ] && [ -z "$out" ] ; then
	echo pass
else
	echo fail
fi