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Full Discussion: Help needed: Adding columns in csv file in loop
Top Forums Shell Programming and Scripting Help needed: Adding columns in csv file in loop Post 302472553 by smap007 on Wednesday 17th of November 2010 11:50:14 AM
Old 11-17-2010
The shell script is big file can't post (someone else wrote it). But, it produces data01.csv, data02.csv, data03.csv, data04.csv, ..... data30.csv files.

Here is shell script I wrote (but not working) to get 3 column from these file to merge in another file.
Code:
for ((  i = 1 ;  i <= 30;  i++  ))
do
    cat data${i}.csv | while read record
    do
      echo $record | cut -d" " -f3 >> temp${i}.csv
    done
    paste temp${i}.csv > final_data.csv
done

Last edited by Franklin52; 11-17-2010 at 01:28 PM.. Reason: Please use code tags
 

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LEARN ABOUT CENTOS

processcsv.py

PROCESSCSV.PY(1)					      Virtualization Support						  PROCESSCSV.PY(1)

NAME

       processcsv.py - process virt-top CSV files

SUMMARY

	virt-top --csv data.csv
	processcsv.py < data.csv

DESCRIPTION

       virt-top is a top(1)-like utility for showing stats of virtualized domains.

       processcsv.py is a simple Python script that post-processes the output of "virt-top --csv".

       It is used like this:

	virt-top --csv data.csv
	processcsv.py < data.csv

       The second command will overwrite the following files in the current directory:

       "global.csv"
	   This contains the global (host) statistics columns from the CSV file.

       "domainNN.csv" (multiple files)
	   For each libvirt domain ID NN, a file is created containing the per-domain statistics from the CSV file.

SEE ALSO

       virt-top(1)

AUTHORS

       Richard W.M. Jones <rjones @ redhat . com>

COPYRIGHT

       (C) Copyright 2007-2012 Red Hat Inc., Richard W.M. Jones http://libvirt.org/

       This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
       the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation,
       Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

virt-top-1.0.8							    2013-12-29							  PROCESSCSV.PY(1)
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