49 lines
1.5 KiB
Bash
Executable File
49 lines
1.5 KiB
Bash
Executable File
#!/bin/sh
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# Prints all batteries, their percentage remaining and an emoji corresponding
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# to charge status (🔌 for plugged up, 🔋 for discharging on battery, etc.).
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case $BLOCK_BUTTON in
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3) notify-send "🔋 Battery module" "🔋: discharging
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🛑: not charging
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🔄;: stagnant charge
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🔌: charging
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⚡: charged
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❗: battery very low!" ;;
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esac
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# Loop through all attached batteries.
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for battery in /sys/class/power_supply/BAT?
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do
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# Get its remaining capacity and charge status.
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capacity=$(cat "$battery"/capacity 2>/dev/null)
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if [ -n "$capacity" ]; then
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#do not print misreads
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[ "$capacity" -gt 100 ] &&
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echo "Error. Capacity:$capacity" > /dev/stderr &&
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continue
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# do not display full batteries (nice to unclutter status bars for laptops mostly used stationiary)
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[ "$capacity" -eq 100 ] &&
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printf '\n' &&
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continue
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status=$(sed "s/Discharging//;s/Not charging/🛑/;s/Charging/🔌/;s/Unknown/🔋/;s/Full/⚡/" "$battery"/status)
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# Center picture around the actual capacity.
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# Displayable capacities: 0, 1/4, 1/2, 3/4, 1 -> intervall of length 25% centered around displaycategory
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# -> +- 12.5% for every level
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if [ "$status" = "" ]; then
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[ "$capacity" -le 13 ] &&
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status=""
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[ "$capacity" -le 37 ] &&
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status=""
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[ "$capacity" -le 63 ] &&
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status=""
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[ "$capacity" -le 87 ] &&
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status=""
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fi
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printf "%s\n" "$status"
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else
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echo "Error. Capacity:$capacity" > /dev/stderr #if battery fails during reading, quit
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fi
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done | sed 's/ *$//'
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