86 lines
2.3 KiB
Perl
86 lines
2.3 KiB
Perl
#!/usr/bin/perl
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###############################################################################
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#
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# Copyright (c) 2009 Ramon Novoa <rnovoa@artica.es>
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# Copyright (c) 2009 Artica Soluciones Tecnologicas S.L.
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#
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# pandora_df Retrieve filesystem disk usage. By default information for all
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# filesystems is returned, but one or more filesystems may be
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# specified as command line parameters. If parameter start with
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# a '-', the filesystem is excluded from results.
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#
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# Sample usage: ./pandora_df tmpfs /dev/sda1
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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###############################################################################
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use strict;
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# Retrieve information from all filesystems
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my $all_filesystems = 0;
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# Check command line parameters
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if ($#ARGV < 0) {
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$all_filesystems = 1;
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}
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# Parse command line parameters
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my %filesystems;
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my %excluded_filesystems;
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my $onlyexclude = 1;
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foreach my $fs (@ARGV) {
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if (substr($fs,0,1) eq '-') {
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$excluded_filesystems{substr($fs,1,)} = '-1%';
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} else {
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$filesystems{$fs} = '-1%';
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$onlyexclude = 0;
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}
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}
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if ($onlyexclude) {
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$all_filesystems = 1;
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}
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# Retrieve filesystem information
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# -P use the POSIX output format for portability
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my @df = `df -P`;
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shift (@df);
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# No filesystems? Something went wrong.
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if ($#df < 0) {
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exit 1;
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}
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# Parse filesystem usage
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foreach my $row (@df) {
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my @columns = split (' ', $row);
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exit 1 if ($#columns < 4);
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if (defined ($filesystems{$columns[0]}) || ($all_filesystems == 1 && !defined ($excluded_filesystems{$columns[0]}))) {
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$filesystems{$columns[0]} = $columns[4] ;
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}
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}
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while (my ($filesystem, $use) = each (%filesystems)) {
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# Remove the trailing %
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chop ($use);
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# Print module output
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print "<module>\n";
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print "<name><![CDATA[" . $filesystem . "]]></name>\n";
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print "<type><![CDATA[generic_data]]></type>\n";
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print "<data><![CDATA[" . $use . "]]></data>\n";
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print "<description><![CDATA[% of usage in this volume]]></description>\n";
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print "</module>\n";
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}
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exit 0;
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