trim-trailing-whitespace: remove spaces, tabs and alike at end of each line

README.rst

@@ -40,6 +40,7 @@ This repository hosts various small personal tools.
 * stickimage: display an image always-on-top like a sticky note
 * supybot-shell: Supybot plugin: execute shell commands and see their output
 * tailsleep: like tail -f but quits when I/O activity stops
+* trim-trailing-whitespace: remove spaces, tabs and alike at end of each line
 * univisible: tweak Unicode combinations and visualize them
 * vhd: visual hex dump, splitting at newlines, not fixed-width lines
 * wakeonwan: wake remote machines with Wake-on-WAN

trim-trailing-whitespace/trim-trailing-whitespace

+#!/bin/sed -f
+# license: Do What The Fuck You Want To Public License version 2 [http://www.wtfpl.net/]
+# remove trailing whitespace on each line
+# warning: \r\n will likely be converted to \n
+
+s/[[:space:]]*$//