check_cpu.sh (matejunkie)

Project Notes

Description check_cpu.sh is a Nagios plugin to monitor CPU utilization. It makes use of /proc/stat and calculates it through Jiffies rather than using another frontend tool like iostat or top. When using optional warning/critical thresholds all values except idle are aggregated and compared to the thresholds. There's currently no support for warning/critical thresholds for specific usage parameters. Version Version 1.0, 2009, Mike Adolphs (http://www.matejunkie.com/) -h/--help Output check_cpu.sh [-i/--interval] [-w/--warning] [-c/--critical] Options: --interval|-i) Defines the pause between the two times /proc/stat is being parsed. Higher values could lead to more accurate result. Default is: 1 second --warning|-w) Sets a warning level for CPU user. Default is: off --critical|-c) Sets a critical level for CPU user. Default is: off Output example user@host:~$ ./check_cpu.sh OK - user: 8.42, nice: 0.50, sys: 6.66, iowait: 0.50, irq: 0.50, softirq: 0.50 idle: 86.40 | 'user'=8.42 'nice'=0.50 'sys'=6.66 'softirq'=0.50 'iowait'=0.50 'irq'=0.50 'idle'=86.40 Changelog * 2009-05-14 o Small bugfix of an exit code