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Full Discussion: Issue with search and replacing multiple items in multiple files
Top Forums UNIX for Beginners Questions & Answers Issue with search and replacing multiple items in multiple files Post 303039122 by RudiC on Monday 23rd of September 2019 04:28:15 PM
Old 09-23-2019
Why that complicated? Try
Code:
awk '
FNR == 1        {FC++
                 FN = FILENAME
                 sub (/.txt/, "-new&", FN)
                }
FC == 1         {VAL[$1]
                 next
                }
FC == 2         {CSV[$2] = $3
                 next
                }
$1 in VAL       {$1 = CSV[$1]
                }
                {print >  FN
                }

' FS=, val.txt file/location/csv FS=" " data-*.txt

It will read the val and csv files and put their values into respective arrays, and then pick any data*.text file around and convert it into a "new" one. If you want to restrict the file selection to 1 .. 31 but skip non-exististing ones, try using shell patterns. You may need to adapt the field separator FS.
This User Gave Thanks to RudiC For This Post:
jim mcnamara
 

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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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