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Full Discussion: Date manipulation using awk
Top Forums Shell Programming and Scripting Date manipulation using awk Post 302860219 by victory101 on Saturday 5th of October 2013 03:54:16 AM
Old 10-05-2013
Quote:
Originally Posted by Corona688
I mixed up the array and the split string in split(), try this:

Code:
gawk -F, -v OFS=, '{ split($4, A, "-"); T=mktime(sprintf("%04d %02d %02d 00 00 00", A[1], A[2], A[3]));
        $4=int((systime()-T)/(60*60*24));
 } 1' inputfile

Thanks for the change, it worked as expected Smilie. This gave me an opportunity to get an insight on awk programming.
This User Gave Thanks to victory101 For This Post:
 

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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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