xev + filtering

Code: xev and filter to run on its output

xev | sed -n 's/^.*keycode *\([0-9]\+\).*$/keycode \1 = /p' | uniq

from:

individual filter on output:

xev | sed -n 's/^.*keycode *\([0-9]\+\).*$/keycode \1 = /p' 

http://www.gentoo-wiki.info/HOWTO_Use_Multimedia_Keys#xev