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File name : check_cpu

Content :#!/usr/local/bin/php <?php $load = sys_getloadavg(); $cpus = substr_count(file_get_contents("/proc/cpuinfo"),"processor"); $usage = trim(shell_exec("sudo vmstat 1 2|tail -1|awk '{print $15}'")); $usage = 100 - $usage; $msg = "System load: ${load[0]} ($cpus CPUs), CPU usage: ${usage}%"; if ($load[0] > ($cpus * 1.5) || ($load[1] >= ($cpus - 2)) || $usage > 70) { echo "CRITICAL: $msg"; exit(2); } else { echo "OK: $msg"; exit(0); }

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