#!/usr/bin/env perl use v5.10; use strict; use warnings; chomp(my $cpu_count = `grep -c -P '^processor\\s+:' /proc/cpuinfo`); if ($cpu_count < 10) { print "all: 00% CPU_0: 00% CPU_10: \n"; } else { print "all: 00% CPU_0: 00% CPU_10: 00%\n"; }