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Top Forums Shell Programming and Scripting Calculating the epoch time from standard time using awk and calculating the duration Post 302644981 by ks_reddy on Tuesday 22nd of May 2012 11:07:45 PM
Old 05-23-2012
Calculating the epoch time from standard time using awk and calculating the duration

Hi All,

I have the following time stamp data in 2 columns
Code:
     Date    TimeStamp(also with milliseconds)
05/23/2012 08:30:11.250
05/23/2012 08:30:15.500
05/23/2012 08:31.15.500

.
.
etc

From this data I need the following output.

Code:
0.00( row1-row1 in seconds)
04.25( row2-row1 in seconds)
64.25(row3-row1 in seconds)

I tried to convert the second column into seconds using HH*60*60+MM*60+SS+MS(milliseconds) formula and subtracting line by line but the problem is if the date changes at some row, I don't know how to proceed.
May be converting ecah column into epoch time and adding together and subtracting row wise can work,
but i don't know how to do that.

Any help in this regard is highly helpful for me.
Thanks
Sidda
 

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PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME
paps - UTF-8 to PostScript converter using Pango SYNOPSIS
paps [options] files... DESCRIPTION
paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves through the pango ft2 backend. OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. --landscape Landscape output. Default is portrait. --columns=cl Number of columns output. Default is 1. --font=desc Set the font description. Default is Monospace 12. --rtl Do rtl layout. --paper ps Choose paper size. Known paper sizes are legal, letter, a4. Default is A4. --bottom-margin=bm Set bottom margin in postscript points (1/72 inch). Default is 36. --top-margin=tm Set top margin. Default is 36. --left-margin=lm Set left margin. Default is 36. --right-margin=rm Set right margin. Default is 36. --help Show summary of options. --header Draw page header for each page. --markup Interpret the text as pango markup. --encoding=ENCODING Assume the documentation encoding is ENCODING. --lpi Set the lines per inch. This determines the line spacing. --cpi Set the characters per inch. This is an alternative method of specifying the font size. --stretch-chars Indicates that characters should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops behaviour. AUTHOR
paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>. This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others). April 17, 2006 PAPS(1)
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