Unix/Linux Go Back    

Linux 2.6 - man page for uptime (linux section 1)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)

UPTIME(1)			       Linux User's Manual				UPTIME(1)

       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 w(1).

       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 sin-
       gle 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 <greenfie@gauss.rutgers.edu> and Michael K. Johnson

       Please send bug reports to <albert@users.sf.net>

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

Cohesive Systems			   26 Jan 1993					UPTIME(1)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums

All times are GMT -4. The time now is 08:17 PM.