The uptime command tells us how long a system has been running.
Look at the above snapshot, command "uptime" displays output in one line.
From the left, it shows,
Here, system load averages are the processes which are either in runnable or in uninterruptable state.
A runnable process may be either a running one using CPU or waiting to use CPU. An uninterruptable process is waiting for some I/O access.
Command uptime has a single option.
It displays version information.
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