dotfiles/.local/bin/statusbar/sb-cpubars

#!/bin/sh
cache=/tmp/cpubarscache
stats=$(awk '/cpu[0-9]+/ {printf "%d %d %d\n", substr($1,4), ($2 + $3 + $4 + $5), $5 }' /proc/stat)
[ ! -f $cache ] && echo "$stats" > "$cache"
old=$(cat "$cache")
printf "\033[11m﬙\033[10m "
echo "$stats" | while read -r row; do
	id=${row%% *}
	rest=${row#* }
	total=${rest%% *}
	idle=${rest##* }
	case "$(echo "$old" | awk '{if ($1 == id)
		printf "%d\n", (1 - (idle - $3)  / (total - $2))*100 /12.5}' \
		id="$id" total="$total" idle="$idle")" in
		"0") printf "\033[32m▁";;
		"1") printf "\033[32m▂";;
		"2") printf "\033[32m▃";;
		"3") printf "\033[33m▄";;
		"4") printf "\033[33m▅";;
		"5") printf "\033[33m▆";;
		"6"|"7"|"8") printf "\033[31m▇";;

	esac
done; printf "\033[0m\n"
echo "$stats" > "$cache"