Shutdown of linux system commands

In linux, shutdown is a multi-user, multi-task system. if the system is disabled or restarted incorrectly, user data may be lost. It is possible that the user is executing a key operation or operation. if you do not prompt to disable it... in linux, shutdown is a multi-user, multi-task system. if the system is disabled or restarted incorrectly, user data may be lost. It is possible that the user is executing a key operation or operation. if the system is disabled without prompt, the user will not be able to save the current data, resulting in data loss. Therefore, you should master the correct method of shutting down and restarting the system to avoid data loss.
The shutdownshutdown command is the most commonly used command to shut down the system. it can be used not only to immediately shut down the system, but also to shut down the system at a specified time.
(1) shut down the system one minute later: # shutdown-h 1 because the administrator privilege is required to shut down or restart the system, you should execute shutdown and other system commands as the root user. Immediately shut down the system: www.2cto.com # shutdown-h now (2) shut down the system at a specified time: # shutdown-h when the root user sends a shutdown command, other users in the system will receive the following prompt: the system is going DOWN for system halt in 2 minutes! If you receive this prompt, you should immediately stop ongoing jobs, save necessary data, and then exit the system.
(3) the shutdown command can also be used to restart the system: # shutdown-r 2 the system will be restarted in 2 minutes. If more than one user is using the system, use the shutdown command when shutting down the system and use the delayed shutdown method to avoid data loss. This article is from the fat shark network.