- #!/usr/bin/env bash
- set -euo pipefail # bash strict mode
- read -r cpu a b c previdle rest < /proc/stat
- prevtotal=$((a+b+c+previdle))
- sleep 0.5
- read -r cpu a b c idle rest < /proc/stat
- total=$((a+b+c+idle))
- cpu=$((100*( (total-prevtotal) - (idle-previdle) ) / (total-prevtotal) ))
- echo -e CPU: "$cpu%"
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