IceWM is a window manager for the X Window System. The goal of IceWM
is speed, simplicity, and not getting in the user's way.
Because icewm users are perhaps less likely to use components of other
desktop environments, the following could be considered a recommendation
for addition to /etc/sudoers (use visudo(8) to edit it), which will allow
all members of the "power" group to use icewm's built-in methods for
shutdown, reboot, and sleep.
Cmnd_Alias POWERMGMT = /sbin/halt, /sbin/reboot, /sbin/poweroff, /usr/sbin/pm-suspend
%power ALL=(ALL) NOPASSWD: POWERMGMT
Some users might wish to have a polkit authentication agent or other things
invoked at X startup - see /usr/share/icewm/startup for suggestions.
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