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Full Discussion: awk command to manipulate csv file in UNIX
Top Forums Shell Programming and Scripting awk command to manipulate csv file in UNIX Post 302965544 by Aia on Saturday 30th of January 2016 12:58:03 PM
Old 01-30-2016
A few bits of Perl.
Code:
perl -nalF, -e '                                  # set Perl to make tokens out of lines
BEGIN{$, = $" = ","}                              # output separators
$c[$o++] = $F[0] unless $col1{$F[0]};             # create a queue order
$col1{$F[0]}->[0] += $F[3];                       # add to column 4
$col1{$F[0]}->[1] += $F[4];                       # add to column 5
END{
    $col1{$c[0]}=["Sum of col4", "Sum of col5"];  # set header
    for(@c){print $_,@{$col1{$_}}}                # display tally
}' file.csv

Code:
col1,Sum of col4,Sum of col5
223,10,13
227,7,2
228,12,34

Last edited by Aia; 01-30-2016 at 02:12 PM.. Reason: Add coments
 

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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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