#!/bin/sh
cd tst
for j in *.ast *.err ; do
	if [ -r $j.bak ]; then
		if cmp -s $j.bak $j; then rm $j
		else echo tst/$j 1>&2; mv $j $j.bak; fi
	else
		echo tst/$j 1>&2; mv $j $j.bak
	fi
done
exit 0