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Full Discussion: Calculate difference in timestamps based on unique column value
Top Forums Shell Programming and Scripting Calculate difference in timestamps based on unique column value Post 302719851 by DGPickett on Tuesday 23rd of October 2012 09:24:45 AM
Old 10-23-2012
From googling for shell date arithmetic, I think you can find actual libraries of that stuff. I wrote mine in C for mass production, and posted it here somewhere: tm2tm.c https://www.unix.com/shell-programmin...bsd-linux.html

AIX has ksh93, which has an almost hidden ability to parse and present date/time that has not made it into bash yet, as far as I can see: http://www.scribd.com/doc/17237220/K...and-Arithmetic It's native to AIX: http://publib.boulder.ibm.com/infoce...l_enhanced.htm
Last edited by DGPickett; 10-23-2012 at 10:37 AM..
 

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LEARN ABOUT LINUX

httppower

httppower(8)							     powerman							      httppower(8)

NAME

       httppower - communicate with HTTP based power distribution units

SYNOPSIS

       httppower [--url URL]

DESCRIPTION

       httppower  is  a  helper program for powerman which enables it to communicate with HTTP based power distribution units.	It is run interac-
       tively by the powerman daemon.

OPTIONS

       -u, --url URL
	      Set the base URL.

INTERACTIVE COMMANDS

       The following commands are accepted at the httppower> prompt:

       auth user:pass
	      Authenticate to the base URL with specified user and password, using ``basic'' HTTP authentication which sends the user and password
	      over the network in plain text.

       seturl URL
	      Set the base URL.  Overrides the command line option.

       get [URL-suffix]
	      Send an HTTP GET to the base URL with the optional URL-suffix appended.

       post [URL-suffix] key=val[&key=val]...
	      Send an HTTP POST to the base URL with the optional URL-suffix appended, and key-value pairs as argument.

FILES

       /usr/sbin/httppower
       /etc/powerman/powerman.conf

ORIGIN

       PowerMan was originally developed by Andrew Uselton on LLNL's Linux clusters.  This software is open source and distributed under the terms
       of the GNU GPL.

SEE ALSO

       powerman(1), powermand(8), httppower(8), plmpower(8), vpcd(8), powerman.conf(5), powerman.dev(5), powerman-devices(7).

       http://sourceforge.net/projects/powerman

powerman-2.3.5							    2009-02-09							      httppower(8)
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