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Full Discussion: Perl: parsing variables
Top Forums Shell Programming and Scripting Perl: parsing variables Post 302215440 by Diabolist on Wednesday 16th of July 2008 10:27:11 AM
Old 07-16-2008
Here are my files:

Code:
bar_20081009_113023.csv
foo_20080909_120345.csv
munge_20061231_010020.csv

Here's the script:
Code:
#!/usr/bin/perl -w

@files = <*.csv>;
foreach $file (@files) {
  open(FH, $file);
  my @dt = ($file =~ /^(\w+)_(\d{4})(\d{2})(\d{2})_(\d{2})(\d{2})(\d{2})\.csv$/);
  while (<FH>) {
    chomp;
    print "$dt[1]-$dt[2]-$dt[3] $dt[4]:$dt[5]:$dt[6],$_\n";
  }
  close(FH);
}

Here's the output:
Code:
# ./test.pl
2008-10-09 11:30:23,bar1
2008-10-09 11:30:23,bar2
2008-09-09 12:03:45,foo1
2008-09-09 12:03:45,foo2
2006-12-31 01:00:20,munge1
2006-12-31 01:00:20,munge2

I'm sure it can be cleaned up a little. I'm not a very good with perl Smilie
 

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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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