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docs: mention long options in man uptime.1

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The commit includes few generic manual clean ups as well.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
This commit is contained in:
Sami Kerola 2011-06-06 22:44:05 +02:00
parent 97b08249c6
commit c1b3c819b0
1 changed files with 34 additions and 23 deletions
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uptime.1
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@ -1,32 +1,35 @@
.\" -*-Nroff-*-
.\"
.TH UPTIME 1 "26 Jan 1993" "Cohesive Systems" "Linux User's Manual"
.TH UPTIME "1" "June 2011" "procps-ng" "User Commands"
.SH NAME
uptime \- Tell how long the system has been running.
.SH SYNOPSIS
.B uptime
.br
.B uptime
.RB [ \-V ]
[\fIoptions\fR]
.SH DESCRIPTION
.B 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.
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.
.PP
This is the same information contained in the header line displayed by
.BR w (1).
.sp
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.
.PP
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.
.SH OPTIONS
.TP
\fB\-h\fR, \fB\-\-help\fR
display this help text
.TP
\fB\-V\fR, \fB\-\-version\fR
display version information and exit
.SH FILES
.TP
.I /var/run/utmp
@ -36,12 +39,20 @@ information about who is currently logged on
process information
.SH AUTHORS
.B uptime
was written by Larry Greenfield <greenfie@gauss.rutgers.edu> and
Michael K. Johnson <johnsonm@sunsite.unc.edu>.
Please send bug reports to <procps@freelists.org>
was written by
.UR greenfie\@gauss.\:rutgers.\:edu
Larry Greenfield
.UE
and
.UR johnsonm\@sunsite.\:unc.\:edu
Michael K. Johnson
.UE
.SH "SEE ALSO"
.BR ps (1),
.BR top (1),
.BR utmp (5),
.BR w (1)
.SH "REPORTING BUGS"
Please send bug reports to
.UR procps\@freelists.org
.UE