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Full Discussion: Merging 2 .CSV files in Unix
Top Forums UNIX for Dummies Questions & Answers Merging 2 .CSV files in Unix Post 302193339 by chachabronson on Friday 9th of May 2008 05:17:52 AM
Old 05-09-2008
Thanks for your help, however i am unable to get teh code above to work.
I have had some assistance with the above from anothe forumite who gave me the following code:

#!/bin/ksh
cat file1.csv file2.csv >> temp
grep X temp | cut -d"," -f1 | sort -u > final2
while read line
do
line1=`grep $line file2.csv`
if [ $? -eq 0 ]
then
echo $line1 >> final_out
else
line2=`grep $line file1.csv`
echo $line2 >> final_out
fi
done < final2


If anyone could explain in detail as to what is happening in the loop that would be great... i have tested the above and it works like a dream but i want to learn rather than just use code. I am a complet novice so would like a description in a basic level which will help me understand for future.

Thanks to everyone who has helped so far
 

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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)
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