Linux command details-reboot, halt, poweroff

& Amp; 65279; & amp; 65279; after reading the man help information of the three commands: reboot, halt, and poweroff, it is found that the same functions are implemented. Purpose: Restart or disable the system syntax: reboot [options] halt [options] poweroff [options] Description: In part 1

Reboot, halt, poweroff

After reading the man help information of these three commands, we found that the same functions are implemented.

Purpose:

Restart or shut down the system

Syntax:

Reboot [options]

Halt [options]

Poweroff [options]

Description:

In some special cases, you can directly call the reboot system call itself to directly restart the system. In other cases, you can only call the shutdown command and add appropriate parameters to complete the corresponding functions.

Main parameters:

-F, -- force

Do not call shutdown, direct to action.

-P, -- poweroff

Behave aspoweroff

-W, -- wtmp-only

Do not perform shutdown or restart, but write the shutdown record to/var/log/wtmp.

-- Verbose

Output more comments for debugging

Affected files:

/Var/run/utmp

Modify the running level

/Var/log/wtmp

After the shutdown information is attached to this file

Example:

Do not perform shutdown or restart, only add Records

Sudo halt -- wtmp-only

Shut down and output comments

Sudo halt -- verbose