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Linux Pocket Guide, 2nd Edition by Daniel J. Barrett

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Name

uptime — stdin  stdout  - file  -- opt  --help  --version

Synopsis

uptime

The uptime command tells you how long the system has been running since the last boot.

$ uptime
 10:54pm  up 8 days,  3:44,  3 users,  load average: 0.89,
1.00, 2.15

This information is, from left to right: the current time (10:54pm), system uptime (8 days, 3 hours, 44 minutes), number of users logged in (3), and system load average for three time periods: one minute (0.89), five minutes (1.00), and fifteen minutes (2.15). The load average is the average number of processes ready to run in that time interval.

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