uptime - Shows how long a system has been running
The uptime command displays the current time, the amount
of time since the system was last started, the number of
users logged into the system, and the load averages.
Prints the Mach factor instead of the load average.
The display of the uptime command is identical to the
heading of a w command display.
The load average numbers give the number of jobs in the
run queue for the last 5 seconds, the last 30 seconds, and
the last 60 seconds. The Mach factor is a variant of the
load average, given for the same intervals; the closer its
value to 0, the higher the load.
Commands: w(1), ruptime(1)
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