#!/bin/sh
-/bin/ls -lL `echo $PATH | tr : ' '` 2> /dev/null | awk '$1 ~ /^[^d].*x/ { print $NF }' | sort -u
+CACHE=$HOME/.dmenu_cache
+IFS=:
+
+uptodate() {
+ test -f "$CACHE" &&
+ for dir in $PATH
+ do
+ test ! $dir -nt "$CACHE" || return 1
+ done
+}
+
+if ! uptodate
+then
+ for dir in $PATH
+ do
+ cd "$dir" &&
+ for file in *
+ do
+ test -x "$file" && echo "$file"
+ done
+ done | sort -u > "$CACHE".$$ &&
+ mv "$CACHE".$$ "$CACHE"
+fi
+
+cat "$CACHE"
