67 lines
1.4 KiB
Bash
Executable File
67 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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### VARIABLES
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POLL_INTERVAL=120 # seconds at which to check battery level
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LOW_BAT=33 # lesser than this is considered low battery
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# If BAT0 doesn't work for you, check available devices with command below
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#
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# $ ls -1 /sys/class/power_supply/
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#
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BAT_PATH=/sys/class/power_supply/BAT0
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BAT_STAT=$BAT_PATH/status
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if [[ -f $BAT_PATH/charge_full ]]
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then
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BAT_FULL=$BAT_PATH/charge_full
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BAT_NOW=$BAT_PATH/charge_now
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elif [[ -f $BAT_PATH/energy_full ]]
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then
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BAT_FULL=$BAT_PATH/energy_full
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BAT_NOW=$BAT_PATH/energy_now
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else
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exit
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fi
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### END OF VARIABLES
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kill_running() { # stop older instances to not get multiple notifications
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local mypid=$$
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declare pids=($(pgrep -f ${0##*/}))
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for pid in ${pids[@]/$mypid/}; do
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kill $pid
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sleep 1
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done
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}
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launched=0
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# Run only if battery is detected
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if ls -1qA /sys/class/power_supply/ | grep -q BAT
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then
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kill_running
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while true
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do
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bf=$(cat $BAT_FULL)
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bn=$(cat $BAT_NOW)
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bs=$(cat $BAT_STAT)
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bat_percent=$(( 100 * $bn / $bf ))
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if [[ $bat_percent -lt $LOW_BAT && "$bs" = "Discharging" && $launched -lt 3 ]]
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then
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notify-send --urgency=critical "$bat_percent% : Low Battery!"
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launched=$((launched+1))
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elif [[ "$bs" = "Charging" ]]
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then
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launched=0
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fi
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sleep $POLL_INTERVAL
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done
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fi
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