#!/bin/sh
#
# Rerun `dmenu_path` (reconstructing the cache in `~/.dmenu_cache`)
# whenever a file is removed or added to a directory in `PATH`.  Start
# this in the background (for example from your `~/.profile` or
# `~/.xsession`) and enjoy.  Requires inotify-tools for the
# `inotifywait` program.

(IFS=":"; inotifywait -q -e move -e create -e delete $PATH -m) \
| while read line; do dmenu_path > /dev/null; done