Exclude directories in locate search

A search with locate finds paths in the filesystem. Often, you know a priori you are interested in either files only, or directories only. A 'locate' search often returns many results. It would be useful to include only one of the types in the result, because it helps shorten the output. But there is a more interesting argument to leave out either files or directories: because the list of result paths can be ambiguous - not only in theory. The example below is a real world case, and not unusual: $ locate --regex --basename "xfce4-keyboard-overlay$" /usr/local/bin/xfce4-keyboard-overlay /usr/local/share/xfce4-keyboard-overlay Ok, we found something! But... files, or directories? $ file /usr/local/bin/xfce4-keyboard-overlay /usr/local/bin/xfce4-keyboard-overlay: bash script So that is a file... $ file /usr/local/share/xfce4-keyboard-overlay /usr/local/share/xfce4-keyboard-overlay: directory while the second is not. This ambiguity is making long lists of paths hard to read, so it would be really nice to filter directories out, for example using a comman line option for locate. Does something like this exist? Even if the filter for directories is separate from locate? At least, one could use a script to iterate all the file names to check - which may be slow.