GNU/Linux man pages
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GNU/Linux |
Ubuntu 9.04(Jaunty Jackalope) |
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runlevel(8) |
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runlevel − output previous and current runlevel
runlevel [OPTION]... [UTMP]
runlevel reads the system utmp file (typically /var/run/utmp) to locate the most recent runlevel record, then outputs the previous and current runlevel from that record to standard output, separated by a single space.
If there is no previous runlevel in the record, the letter N will be printed instead.
If no utmp file exists, or if no runlevel record can be found, runlevel prints the word unknown and exits with an error.
--set=RUNLEVEL
Store a new runlevel record in the utmp file. RUNLEVEL should be one of 0123456S.
The current runlevel in the output will be RUNLEVEL, the previous runlevel will be the runlevel from the last record or N
--reboot
Store a record of the time the system was booted in the utmp file, using the current time.
This will not output anything.
runlevel will exit with status 0 if a utmp record was found or written to the file, otherwise it will exit with status 1.
This tool is provided for compatibility with the traditional System V init(8). Upstart has no notion of runlevels itself, this and the telinit(8) tool are provided to emulate their behaviour.
Written by Scott James Remnant.
Report bugs at https://launchpad.net/products/upstart/+bugs
Copyright
© 2006 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.
init(8) telinit(8)
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runlevel(8) | |