To shut down or reboot computer on timer

[shantiq]

Many of you know this stuff but others do not so here


first so you do not have to enter password each time

sudo gedit /etc/sudoers

then add both lines at bottom of document and save

#includedir /etc/sudoers.d
username ALL=NOPASSWD: /sbin/halt

#includedir /etc/sudoers.d
username ALL=NOPASSWD: /sbin/shutdown

=============================================


NOW you can enter

sudo halt

to turn off computer
or

sudo reboot

to reboot


============================================

But the good stuff is using the timer

sudo shutdown -h 08:48

will shut you down at 8:48

sudo shutdown -r 18:49

will reboot you at 18:49


Further options found with

shutdown --help

===========================================


It means you start a download & ask your computer to shutdown 3 hours later for example

[ajgreeny]

There is no need to edit the sudoers file to do any of that. Just issue those commands, eg

sudo shutdown -h 08:25

enter password when needed, then minimise the terminal, and shutdown will happen at 8:25, just as in your example. You can even set up launchers for "application run in terminal" on your desktop if you want to.

Note also that to enter a time in the 24 hr time system you do not need the + that you have added; that is used for a shutdown/reboot at the current time +# minutes, not the specific time you show, though it does not seem to cause a problem if the + is also used.

I don't see why having to enter a password for this is such a problem.

[shantiq]

thanx for input greeny
was not aware of the + not being needed
will modify in post above



as regards the password well it is mostly if one manipulates this stuff in a script there is no request for password.

see example here where one would be asked for password if this was not set up and task would therefore not be completed