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Full Discussion: Merge CSV files
Top Forums Shell Programming and Scripting Merge CSV files Post 302945687 by Scrutinizer on Monday 1st of June 2015 02:01:07 PM
Old 06-01-2015
If your grep has the -h option (but that is not standard grep), your solution could be reduced somewhat further still, to something like this:
Code:
grep -Fhve '"Date","Inbound","Outbound"' -e '","",""' *.csv | sort -u

If there are too many .csv files you may run into line length limitations. Then this is something you could try:
Code:
find . -name "*.csv" -exec grep -Fhve '"Date","Inbound","Outbound"' -e '","",""' {} + | sort -u

--
Without the -h option you would need cat:
Code:
cat *.csv | grep -Fve '"Date","Inbound","Outbound"' -e '","",""' | sort -u

or
Code:
find . -name "*.csv" -exec cat {} + | grep -Fve '"Date","Inbound","Outbound"' -e '","",""' | sort -u

Last edited by Scrutinizer; 06-01-2015 at 03:09 PM..
 

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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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