"Using awk to change a specific column and in a specific row"

Post #303036416 by juggernautjoee on Tuesday 25th of June 2019 09:12:12 AM

Thanks for the replies guys!

Don, I'll try a few of those and get back to you. The end goal is a cron job that runs daily that will edit this file to replace that 2nd row 6th field with 2400 no matter what the number was before.

EDIT:
I had to compile a newer version of awk to get the inplace command to work, but I think I've got it.

Code:
/usr/local/bin/awk -i inplace -F, '/^02,193631306,000300032,1,/{$6 = 2400}1' OFS=, /testdir/BALTRN3.*

This will edit that line on all files in the directory. So I can run this every day to update any new files that get dumped in here by my lftp process.

I also needed to edit that 3rd line, 2nd field to something else, so I just tweaked the above command to fit my liking:

Code:
/usr/local/bin/awk -i inplace -F, '/^03,08082000001018001/{$2 = 1018001}1' OFS=, /testdir/BALTRN3.*

Guys, I can't thank you enough for pointing me in the right direction!
Moderator's Comments:
Mod Comment Please use CODE tags when displaying sample input, output, and code segments.

Last edited by Don Cragun; 06-25-2019 at 10:44 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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