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Top Forums Shell Programming and Scripting Difference between two huge .csv files Post 302712395 by Dimple on Tuesday 9th of October 2012 06:53:05 AM
Old 10-09-2012
my file has around 1 lakh rows and 300 columns.

Though the command mentioned above is working fine but is taking more than 2 hrs to completely execute and is time consuming.

Is there any command that can specify only the column values and column number where we have the difference like

If there is difference at column number 3 and column number 7, resultant file will have value as
3,7 (Column Number)
Rahul,23 (Values present in file 1)

Rather than displaying "," for all the columns that are matching between two files. It only display columns where we have the mismatch but with a column number to keep the track.

Thanks
 

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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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