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

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#!/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)
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[ ! -f $cache ] && echo "$stats" >"$cache"
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old=$(cat "$cache")
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printf "\033[11m﬙\033[10m "
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echo "$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
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"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▇" ;;
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esac
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done
printf "\033[0m\n"
echo "$stats" >"$cache"