mksh/tests/th.sh

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#!/bin/sh
# $OpenBSD: th.sh,v 1.4 2001/01/28 23:04:57 niklas Exp $
#
# Simple script to find perl and run it
#
# Avoid common problems with ENV (though perl shouldn't let it through)
# (can you believe some shells don't have an unset???)
unset ENV
x=x
[ -x /bin/sh ] 2> /dev/null || x=f
IFS=:$IFS
perl=
for i in $PATH; do
[ X"$i" = X ] && i=.
for j in perl perl4 perl5 ; do
[ -$x "$i/$j" ] && perl=$i/$j && break 2
done
done
[ X"$perl" = X ] && {
echo "$0: can't find perl - bye\n" 1>&2
exit 1
}
exec $perl "$@"