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.
-m Prints the Mach factor instead of the load average.
The display of the uptime command is identical to the heading of a w com-
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 fac-
tor 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)