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Top Forums Shell Programming and Scripting Calculate difference in timestamps based on unique column value Post 302719879 by joeyg on Tuesday 23rd of October 2012 10:02:35 AM
Old 10-23-2012
This may give you something to think about

Code:
$ echo 08/23/2012 12:36:40 12:36:45| tr " " ":" | cut -d":" -f2- | awk -F":" '{tm=($1*3600)+($2*60)+$3; tm2=($4*3600)+($5*60)+$6; tmd=tm2-tm; print tm,tm2,tmd}'
45400 45405 5

I just used a part of your line, and then had awk do some simple math. Now it assumes the times are on the same day. But, this may give you an idea of how to proceed.

Last edited by joeyg; 10-23-2012 at 12:07 PM..
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)
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