search_apps script to make pulling up open applications easier

I added support for focusing a specific window when some kind of
notification occurs to my DWM fork in 879e7d3.  This script allows me
to choose an open window and force my window manager to pull it up.
Very powerful!

SXHkD/.config/sxhkd/sxhkdrc

@@ -17,6 +17,9 @@ super + s
   notify-send -u low "Launching browser"; \
   $HOME/.local/scripts/browser;
 
+super + f
+  $HOME/.local/scripts/search_apps;
+
 super + C
   dunstctl close;
 

Scripts/.local/scripts/search_apps

@@ -0,0 +1,9 @@
+#!/usr/bin/env sh
+
+app=$(wmctrl -l |\
+          awk '{for (i=4; i<=NF; i++) printf "%s ", $i; print ""}' |\
+          dmenu -i -p "Switch to: ")
+if [ ! -z "$app" ]
+then
+    wmctrl -a $app
+fi