I am learning bash and am trying to make an application for a shutdown timer using Zenity. As a feedback I want to display the output of the standard shutdown command.
In console, the command:
shutdown -h 30
gives me the output:
Shutdown scheduled for Sun 2022-09-18 13:58:36 CEST, use 'shutdown -c' to cancel.
Now I want to store the output into a variable. I tried:
FEEDBACK=$(shutdown -h +30)
but then
echo $FEEDBACK
is empty.