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#!/usr/bin/env sh
# script for spectrwm status bar
trap 'update' 5
fgcolors=("+@fg=1;" "+@fg=2;" "+@fg=3;" "+@fg=4;" "+@fg=5;" "+@fg=6;" "+@fg=7;" "+@fg=8;")
nfgcolors=${#fgcolors[@]}
SLEEP_SEC=5m
repeat() {
i=0; while [ $i -lt $1 ]
do
echo -ne "$TOKEN"
i=$(( i + 1 ))
done
}
cpu() {
read cpu a b c previdle rest < /proc/stat
prevtotal=$((a+b+c+previdle))
sleep 0.5
read cpu a b c idle rest < /proc/stat
total=$((a+b+c+idle))
cpu=$((100*( (total-prevtotal) - (idle-previdle) ) / (total-prevtotal) ))
echo -e "CPU: $cpu%"
}
battery() {
BATTERY="$(cat /sys/class/power_supply/BAT0/capacity)"
BAR_LEFT=$BATTERY
BATTERY_BAR=""
BLOCK=$(( 100 / nfgcolors ))
TOKEN=$(printf '\u2588')
BAT_COL=$(( $nfgcolors -1 ))
#loops forever outputting a line every SLEEP_SEC secs
while [ $(( BAR_LEFT - BLOCK )) -gt 0 ]
do
BATTERY_BAR="${fgcolors[$BAT_COL]}$(repeat $BLOCK)${BATTERY_BAR}"
BAR_LEFT=$(( BAR_LEFT - BLOCK ))
BAT_COL=$(( BAT_COL - 1))
done
BATTERY_BAR="BATTERY: ${fgcolors[$BAT_COL]}$(repeat $BAR_LEFT)${BATTERY_BAR}"
echo $BATTERY_BAR
}
update() {
echo "$(cpu) $(battery)"
wait
}
while :; do
update
sleep $SLEEP_SEC &
wait
done
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