- if test "`ls -dt $PATH "$CACHE" 2> /dev/null | sed 1q`" != "$CACHE"; then
- mkdir -p "`dirname "$CACHE"`" && lsx $PATH | sort -u > "$CACHE"
+ if ls -d $PATH | stest -q -n "$CACHE"; then
+ for dir in $PATH; do
+ ls $dir | stest -C $dir -fx
+ done | sort -u > "$CACHE"