Xdotool : Fake Keyboard/Mouse Input Tool

xdotool is a fake keyboard/mouse input tool for linux which is freely available on the internet.
So whatever you keep typing on the keyboard or kept clicking using the mouse , you can do it now with the help of a script.

One can get the tool downloaded from their website for all versions of linux:
http://www.semicomplete.com/projects/xdotool
There are too many uses you can use xdotool for. For example : If you need to open multiple tabs in a terminal you can use -
'xdotool key ctrl+shift+t' for as many times as the no. of tabs you need and to close down those tabs use 'xdotool ctrl+shift+w'

All this can be written on a script and when the script runs you can see all of that happening without even touching the keyboard or mouse.

The whole documentation is present here

Here are some examples :

Example: focus the firefox url bar

WID=`xdotool search "Mozilla Firefox" | head -1`
xdotool windowactivate --sync $WID
xdotool key --clearmodifiers ctrl+l


# As of version 2.20100623, you can do this simpler version of above:
xdotool search "Mozilla Firefox" windowactivate --sync key --clearmodifiers ctrl+l

Example: Resize all visible gnome-terminal windows
WIDS=`xdotool search --onlyvisible --name "gnome-terminal"`
for id in $WIDS; do
  xdotool windowsize $id 500 500
done

# As of version 2.20100623, you can do this simpler version of above:
xdotool search --onlyvisible --classname "gnome-terminal" windowsize %@ 500
500