Plan 9 from Bell Labs’s /usr/web/sources/contrib/rsc/scripts/'chk

Copyright © 2021 Plan 9 Foundation.
Distributed under the MIT License.
Download the Plan 9 distribution.


#!/bin/rc

if(~ $#* 0)
	grep -v '^[^'']*(''[^'']*''[^'']*)*$' $*
if not
	grep -nv '^[^'']*(''[^'']*''[^'']*)*$' $* /dev/null

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