#!/bin/bash
rx='^CPU[[:blank:]]+LOAD\:[[:blank:]]+(([0-9]{1,3})[[:blank:]]+)?Average:([[:blank:]]+([0-9]{1,3}))?$'
line="CPU LOAD: 89 Average: 99"
if [[ $line =~ $rx ]]; then
printf "\n\n${BASH_REMATCH[2]} ${BASH_REMATCH[4]}\n\n"
else
printf "\n\nDidn't Match\n\n"
fi
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