119 lines
3.0 KiB
HTML
119 lines
3.0 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of UPTIME</TITLE>
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</HEAD><BODY>
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<H1>UPTIME</H1>
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Section: User Commands (1)<BR>Updated: December 2012<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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uptime - Tell how long the system has been running.
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>uptime</B>
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[<I>options</I>]
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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<B>uptime</B>
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gives a one line display of the following information. The current time, how
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long the system has been running, how many users are currently logged on, and
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the system load averages for the past 1, 5, and 15 minutes.
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<P>
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This is the same information contained in the header line displayed by
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<B><A HREF="/cgi-bin/man/man2html?1+w">w</A></B>(1).
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<P>
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System load averages is the average number of processes that are either in a
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runnable or uninterruptable state. A process in a runnable state is either
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using the CPU or waiting to use the CPU. A process in uninterruptable state
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is waiting for some I/O access, eg waiting for disk. The averages are taken
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over the three time intervals. Load averages are not normalized for the
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number of CPUs in a system, so a load average of 1 means a single CPU system
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is loaded all the time while on a 4 CPU system it means it was idle 75% of
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the time.
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<A NAME="lbAE"> </A>
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<H2>OPTIONS</H2>
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<DL COMPACT>
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<DT id="1"><B>-p</B>, <B>--pretty</B><DD>
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show uptime in pretty format
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<DT id="2"><B>-h</B>, <B>--help</B><DD>
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display this help text
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<DT id="3"><B>-s</B>, <B>--since</B><DD>
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system up since, in yyyy-mm-dd HH:MM:SS format
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<DT id="4"><B>-V</B>, <B>--version</B><DD>
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display version information and exit
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</DL>
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<A NAME="lbAF"> </A>
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<H2>FILES</H2>
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<DL COMPACT>
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<DT id="5"><I>/var/run/utmp</I>
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<DD>
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information about who is currently logged on
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<DT id="6"><I>/proc</I>
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<DD>
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process information
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</DL>
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<A NAME="lbAG"> </A>
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<H2>AUTHORS</H2>
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<B>uptime</B>
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was written by
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Larry Greenfield
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and
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Michael K. Johnson
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<A NAME="lbAH"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?1+ps">ps</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?1+top">top</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?5+utmp">utmp</A></B>(5),
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<B><A HREF="/cgi-bin/man/man2html?1+w">w</A></B>(1)
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<A NAME="lbAI"> </A>
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<H2>REPORTING BUGS</H2>
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Please send bug reports to
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="7"><A HREF="#lbAB">NAME</A><DD>
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<DT id="8"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="9"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="10"><A HREF="#lbAE">OPTIONS</A><DD>
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<DT id="11"><A HREF="#lbAF">FILES</A><DD>
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<DT id="12"><A HREF="#lbAG">AUTHORS</A><DD>
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<DT id="13"><A HREF="#lbAH">SEE ALSO</A><DD>
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<DT id="14"><A HREF="#lbAI">REPORTING BUGS</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:29 GMT, March 31, 2021
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</BODY>
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</HTML>
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