1mfiles="" 2for f in $files 3do 4 rm -f m$f 5 [ -f $f ] && cp $f m$f 6 mfiles="$mfiles m$f" 7done 8unifdef -M~ $opts $mfiles 9e=$? 10for f in $mfiles 11do 12 diff -u $f~ $f | sed '/^[+-]\{3\} /s/ .*//' 13 rm -f $f~ $f 14done 15exit $e 16