dmenu_files

#!/bin/sh

locatedb=/var/lib/mlocate/mlocate.db # 'locate' database file, very likely here
cachedir=${XDG_CACHE_HOME:-"$HOME/.cache"}

if [ -d "$cachedir" ]
then
        cache=$cachedir/dmenu_open
else # if no xdg dir, fall back to dotfile in ~
        cache=$HOME/.dmenu_open
fi

if [ ! -f "$cache" ] || [ "$cache" -ot "$locatedb" ]
# ie: if the cache file exists OR if the cache is older than the lcoatedb
then
        nohidden="/\/\./d"      # removes all hidden files from the list
        striphome="s#$HOME/##"  # strips home directory suffix
        locate -r "^$HOME/" | sed "$nohidden; $striphome" | tee "$cache"
else
        cat "$cache"
fi