How to maximize all windows from command line

Question

To maximise all windows from the command line, it would be great if wmctrl could be used as easily in minimizing all windows. How do I can use it to do the reverse?

Answer 1

... the right answer for "command (line) minimize all" action is that of

wmctrl -k on;

sadly to say it, there isn't the equivalent "countermesure" for wmctrl to maximize all simply, but it can be used in a bash script as suggested here. The code is

#!/bin/bash
# create a list of all open windows by ID
window_ids=$(wmctrl -l | cut -f1 -d " ")
# process every window by ID
for window_id in $window_ids
do
    wmctrl -i -r "$window_id" -b add,fullscreen
done
exit 0

Don't forget to save your file under whatever name you want, and make it eXecutable:

chmod +x [myfile_bash]

Then you can also assign its link to a keyboard shortcut ;-)

I hope I've been helpful.