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       uptime - Tell how long the system has been running.


       uptime [-V]


       uptime  gives  a  one  line  display of the following information.  The
       current time, how long the system has been running, how many users  are
       currently  logged  on,  and the system load averages for the past 1, 5,
       and 15 minutes.

       This is the same information contained in the header line displayed  by

       System load averages is the average number of processes that are either
       in a runnable or uninterruptable state.  A process in a runnable  state
       is  either  using  the  CPU  or  waiting  to  use the CPU. A process in
       uninterruptable state is waiting for some I/O access,  eg  waiting  for
       disk.   The  averages  are  taken  over the three time intervals.  Load
       averages are not normalized for the number of CPUs in a  system,  so  a
       load  average  of  1  means  a single CPU system is loaded all the time
       while on a 4 CPU system it means it was idle 75% of the time.


              information about who is currently logged on

       /proc  process information


       uptime was written by Larry Greenfield <> and
       Michael K. Johnson <>.

       Please send bug reports to <>


       ps(1), top(1), utmp(5), w(1)