--- a/x.rst	Tue Apr 24 16:47:30 2012 +0300
+++ b/x.rst	Wed Apr 25 15:22:28 2012 +0300
@@ -76,6 +76,13 @@
   $ xprop -root
   $ xprop -name bash    # for xterm with running bash inside
 
+Find the keycode.
+=================
+::
+
+  $ xev
+  $ cat /usr/include/X11/keysymdef.h
+
 Making screenshort.
 ===================
 ::