NAME¶
reboot, halt, poweroff - reboot or stop the system
SYNOPSIS¶
reboot [
OPTION]...
halt [
OPTION]...
poweroff [
OPTION]...
DESCRIPTION¶
These programs allow a system administrator to
reboot,
halt or
poweroff the system.
When called with
--force or when in runlevel
0 or
6, this
tool invokes the
reboot(2) system call itself and directly reboots the
system. Otherwise this simply invokes the
shutdown(8) tool with the
appropriate arguments.
Before invoking
reboot(2), a shutdown time record is first written to
/var/log/wtmp
OPTIONS¶
- -f, --force
- Does not invoke shutdown(8) and instead performs the
actual action you would expect from the name.
- -p, --poweroff
- Instructs the halt command to instead behave as
poweroff.
- -w, --wtmp-only
- Does not call shutdown(8) or the reboot(2)
system call and instead only writes the shutdown record to
/var/log/wtmp
- --verbose
- Outputs slightly more verbose messages when rebooting,
useful for debugging problems with shutdown.
ENVIRONMENT¶
- RUNLEVEL
- reboot will read the current runlevel from this
environment variable if set in preference to reading from
/var/run/utmp
FILES¶
- /var/run/utmp
- Where the current runlevel will be read from; this file
will also be updated with the runlevel record being replaced by a shutdown
time record.
- /var/log/wtmp
- A new runlevel record for the shutdown time will be
appended to this file.
AUTHOR¶
Written by Scott James Remnant <
scott@netsplit.com>
REPORTING BUGS¶
Report bugs at <
https://launchpad.net/upstart/+bugs>
COPYRIGHT¶
Copyright © 2009 Canonical Ltd.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
SEE ALSO¶
shutdown(8) telinit(8) runlevel(8)