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Full Discussion: How to print previous line of multiple pattern matched line?
Top Forums Shell Programming and Scripting How to print previous line of multiple pattern matched line? Post 302965884 by RudiC on Thursday 4th of February 2016 04:10:31 AM
Old 02-04-2016
There's not a single line in your sample having a diff value > 10.000, so it's difficult to test. Tested with 1E-6 instead (replace with 1E2 for your values). Try
Code:
awk '/^Line/ && ($NF*$NF > 1E-12) && C {print LAST; print} {C = /^Comp/; LAST = $0}' file
Comparing csv_converted_files/220151130005008/97447.101866J362.11513249717775333748.csv and csv_converted_files/220151130005009/97447.101866J362.11513249717775333748.csv
Line 1493;Field 42 diff value -260.341918945 - -260.341888428 =  -3.0517e-05
Comparing csv_converted_files/220151130005009/97447.101866J362.11513249717775333748.csv and csv_converted_files/220151130005008/97447.101866J362.11513249717775333748.csv
Line 1493;Field 42 diff value -260.341888428 - -260.341918945 =  3.0517e-05

 

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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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