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RUNLEVEL(8) Linux System Administrator's Manual RUNLEVEL(8)
runlevel -- find the current and previous system runlevel.
Runlevel reads the system utmp file (typically /var/run/utmp) to locate the runlevel
record, and then prints the previous and current system runlevel on its standard output,
separated by a single space. If there is no previous system runlevel, the letter N will be
If no utmp file exists, or if no runlevel record can be found, runlevel prints the word
unknown and exits with an error.
Runlevel can be used in rc scripts as a substitute for the System-V who -r command. How-
ever, in newer versions of init(8) this information is also available in the environment
variables RUNLEVEL and PREVLEVEL.
utmp The name of the utmp file to read.
Miquel van Smoorenburg, firstname.lastname@example.org
May 27, 1997 RUNLEVEL(8)
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