grep -v 13 zeros in a string Post: 302678739

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Top Forums Shell Programming and Scripting grep -v 13 zeros in a string Post 302678739 by MarkSeger on Sunday 29th of July 2012 04:08:49 PM

07-29-2012

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but wait, what;s with the --hr 100? Are you trying to eliminate all but the first header? if so there's a switch for that too! --hr -1 suppresses all headers (btw - being lazy also invented hr to avoid typing headerrepeat Smilie

), --hr 0 prints a single header and anything >0 repeats the header. generally when I find the need to do something different, I just invent a new switch. wait til you see the next version Smilie

It might be more interesting to tell me what you're trying to do and there might even be some more switches to help you out. for example if you're trying to generate output to load into mysql, maybe -P format would be more suitable.

also, how long do you want this command to run for and are the sampling intervals what you want? since this is actually interactive mode, you're sampling disk data every second and process data every 60. you can certainly change those but I often find it more useful to just run as a daemon and letting it run all the time. then, if you just want process/disk data, play back what was recorded and just display the subset you want. you may think you only want process/disk data now, but what if there's a problem and you wish you also had network, memory, etc at least recorded if not loaded into mysql?

-mark

MarkSeger

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LEARN ABOUT X11R4

uptime

UPTIME(1)							   User Commands							 UPTIME(1)

NAME

       uptime - Tell how long the system has been running.

SYNOPSIS

       uptime [options]

DESCRIPTION

       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 single CPU system is loaded all the time while on a 4 CPU system it means it was idle 75% of the time.

OPTIONS

       -p, --pretty
	      show uptime in pretty format

       -h, --help
	      display this help text

       -s, --since
	      system up since, in yyyy-mm-dd HH:MM:SS format

       -V, --version
	      display version information and exit

FILES

       /var/run/utmp
	      information about who is currently logged on

       /proc  process information

AUTHORS

       uptime was written by Larry Greenfield <greenfie@gauss.rutgers.edu> and Michael K. Johnson <johnsonm@sunsite.unc.edu>

SEE ALSO

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

REPORTING BUGS

       Please send bug reports to <procps@freelists.org>

procps-ng							   December 2012							 UPTIME(1)

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