Icinga plugin - core frequencies

cpu_monitor.sh

#!/usr/bin/env bash
#
# Read core number from /proc/cpuinfo and display frequency of each

# count the processor fields and display the number
awk '/processor/ {core_count++} END{print "CPU OK:", core_count, "CPUs;"}' \
  /proc/cpuinfo

# get the frequency for each core and keep track of core id via counter
awk 'BEGIN{printf "| "} /cpu MHz/ {print core_id++ "=" $4}' \
  /proc/cpuinfo

exit 0