Linux halt Command

If the system's runlevel is 0 or 6, the Linux halt command shuts down the system; otherwise, it is replaced by the shutdown command with the -h parameter.

Usage permission: System administrator.

Syntax

halt [-n] [-w] [-d] [-f] [-i] [-p]

Parameter Description:

-n: Do not flush the memory data to the hard drive before shutting down.
-w: Does not actually shut down; only writes a record to the /var/log/wtmp file.
-d: Does not write a record to the /var/log/wtmp file (-n includes -d).
-f: Forces shutdown without calling the shutdown command.
-i: Stops all network-related devices before shutting down.
-p: Performs a poweroff action in addition to shutting down.

Examples

Shut down the system

# halt

Shut down the system and power off

# halt -p

Shut down the system without leaving a record

# halt -d

Linux Command Manual

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