Match columns from two csv files and update field in one of the csv file Post: 302926671

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Top Forums Shell Programming and Scripting Match columns from two csv files and update field in one of the csv file Post 302926671 by Don Cragun on Wednesday 26th of November 2014 01:34:16 AM

11-26-2014

Registered User

The following awk script seems to do what you said you want:

Code:

awk '
BEGIN {	FS = OFS = ","
}
FNR == NR {
	k[$2] = $1
	next
}
{	if($12 == 1 && $1 in k) $6 = k[$1]
}
1' file2 file1

But, with your sample input files it produces the output:

Code:

1AA,LGV_PONCEY_LES_ATHEE,1,\N,1,00020460E1,0,\N,\N,\N,\N,2,00.22335321,0.00466628
2BB,LES_POUGES_ASF,\N,200,200,000122T3,0,\N,\N,\N,\N,1,00.30887539,0.00050312
201,LES_POUGES_ASF,\N,201,201,000118T3,0,\N,\N,\N,\N,1,00.30887539,0.00050312

which disagrees with the output you said you wanted on the 3rd line. (Nothing in your description talked about changing the contents of the 1st field from "201" to "202" under any circumstances???)

You didn't say what OS or shell you're using. If you want to try this on a Solaris/SunOS system, change awk to /usr/xpg4/bin/awk, /usr/xpg6/bin/awk, or nawk.

Last edited by Don Cragun; 11-26-2014 at 05:52 AM.. Reason: Fix mismatched ".

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LEARN ABOUT DEBIAN

ifpps

ifpps(8)							netsniff-ng-toolkit							  ifpps(8)

NAME

       ifpps - fetch and format kernel network statistics

SYNOPSIS

       ifpps	 -d|--dev <netdev> [-t|--interval <sec>][-p|--promisc][-c|--term]
	    [-C|--csv][-H|--csv-tablehead][-l|--loop][-v|--version][-h|--help]

DESCRIPTION

       A tiny tool to provide top-like reliable networking statistics.	ifpps reads out the 'real' kernel statistics, so it does not give
       erroneous statistics on high I/O load.

OPTIONS

       ifpps --dev eth0
	   Fetch eth0 interface statistics.

       ifpps --dev eth0 --interval 60 --csv
	   Output eth0 interface statistics every minute in CSV format.

OPTIONS

       -h|--help
	   Print help text and lists all options.

       -v|--version
	   Print version.

       -d|--dev <netdev>
	   Device to fetch statistics for i.e., eth0.

       -p|--promisc
	   Put the device in promiscuous mode

       -t|--interval <time>
	   Refresh time in sec (default 1 sec)

       -c|--term
	   Output to terminal

       -C|--csv
	   Output in CSV format.  E.g. post-processing with Gnuplot et al.

       -H|--csv-tablehead
	   Print CSV table head.

       -l|--loop
	   Loop terminal output.

AUTHOR

       Written by Daniel Borkmann <daniel@netsniff-ng.org>

DOCUMENTATION

       Documentation by Emmanuel Roullit <emmanuel@netsniff-ng.org>

BUGS

       Please report bugs to <bugs@netsniff-ng.org>

								    2012-06-29								  ifpps(8)