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profiles/desktop/.config/i3/scripts/cpu_usage

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+#!/usr/bin/perl
+#
+# Copyright 2014 Pierre Mavro <deimos@deimos.fr>
+# Copyright 2014 Vivien Didelot <vivien@didelot.org>
+# Copyright 2014 Andreas Guldstrand <andreas.guldstrand@gmail.com>
+#
+# Licensed under the terms of the GNU GPL v3, or any later version.
+
+use strict;
+use warnings;
+use utf8;
+use Getopt::Long;
+
+# default values
+my $t_warn = 50;
+my $t_crit = 80;
+my $cpu_usage = -1;
+my $decimals = 0;
+
+sub help {
+    print "Usage: cpu_usage [-w <warning>] [-c <critical>] [-d <decimals>]\n";
+    print "-w <percent>: warning threshold to become yellow\n";
+    print "-c <percent>: critical threshold to become red\n";
+    print "-d <decimals>:  Use <decimals> decimals for percentage (default is $decimals) \n"; 
+    exit 0;
+}
+
+GetOptions("help|h" => \&help,
+"w=i"    => \$t_warn,
+"c=i"    => \$t_crit,
+"d=i"    => \$decimals,
+);
+
+# Get CPU usage
+$ENV{LC_ALL}="en_US"; # if mpstat is not run under en_US locale, things may break, so make sure it is
+open (MPSTAT, 'mpstat 1 1 |') or die;
+while (<MPSTAT>) {
+if (/^.*\s+(\d+\.\d+)\s+$/) {
+$cpu_usage = 100 - $1; # 100% - %idle
+last;
+}
+}
+close(MPSTAT);
+
+$cpu_usage eq -1 and die 'Can\'t find CPU information';
+
+# Print short_text, full_text
+printf "%.${decimals}f%%\n", $cpu_usage;
+printf "%.${decimals}f%%\n", $cpu_usage;
+
+# Print color, if needed
+if ($cpu_usage >= $t_crit) {
+print "#fb4934\n";
+exit 33;
+} elsif ($cpu_usage >= $t_warn) {
+print "#fabd2f\n";
+}
+
+exit 0;
+