Linux , . , , , .
, Linux shutdown
.

Linux, :
shutdown [options] [time] [message]
[options]
- , , .[time]
- , .[message]
- , .
shutdown
Linux root
sudo
.
, sudo shutdown
60 .

Linux, :
sudo shutdown --help
, .

, [time]
, , . - .
: (hh:mm) . :
sudo shutdown hh:mm
, 7 , :
sudo shutdown 07:00

+m
. :
sudo shutdown +m
20 , :
sudo shutdown +20

, shutdown
- . , , :
sudo shutdown now
- , 0, :
sudo shutdown +0
, , , . , , .
[message], [time]:
sudo shutdown [time] "[message]"
, 20 , :
sudo shutdown +20 "System Upgrade"

, :
sudo shutdown -c
. [message] ( ) . :
sudo shutdown -c "Canceling System Upgrade"