1#!/bin/sh 2# Like mv $1 $2, but if the files are the same, just delete $1. 3# Status is 0 if $2 is changed, 1 otherwise. 4if 5test -r $2 6then 7if 8cmp -s $1 $2 9then 10echo $2 is unchanged 11rm -f $1 12else 13mv -f $1 $2 14fi 15else 16mv -f $1 $2 17fi 18