36 lines
848 B
Plaintext
36 lines
848 B
Plaintext
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#!/usr/bin/perl
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#
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# Copyright 2014 Pierre Mavro <deimos@deimos.fr>
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# Copyright 2014 Vivien Didelot <vivien@didelot.org>
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# Copyright 2014 Andreas Guldstrand <andreas.guldstrand@gmail.com>
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#
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# Licensed under the terms of the GNU GPL v3, or any later version.
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use strict;
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use utf8;
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use Getopt::Long;
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# default values
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my $cpu_usage = -1;
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my $decimals = $ENV{DECIMALS} // 2;
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my $label ="C ";
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# Get CPU usage
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$ENV{LC_ALL}="en_US"; # if mpstat is not run under en_US locale, things may break, so make sure it is
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open (MPSTAT, 'mpstat 1 1 |') or die;
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while (<MPSTAT>) {
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if (/^.*\s+(\d+\.\d+)[\s\x00]?$/) {
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$cpu_usage = 100 - $1; # 100% - %idle
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last;
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}
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}
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close(MPSTAT);
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$cpu_usage eq -1 and die 'Can\'t find CPU information';
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# Print short_text, full_text
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printf "${label}";
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printf "%.${decimals}f%%\n", $cpu_usage;
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exit 0;
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