27 lines
948 B
Bash
27 lines
948 B
Bash
#!/usr/bin/env bash
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THRESHOLD=10
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EXPIRY_MS=2*60*1000 # 2 minutes
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# Find the battery device (first one found)
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BATTERY=$(upower -e | grep battery | head -n1)
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# If no battery found, exit
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if [ -z "$BATTERY" ]; then
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echo "$(date '+%Y-%m-%d %H:%M:%S') No battery found. Exiting."
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exit 0
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fi
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echo "$(date '+%Y-%m-%d %H:%M:%S') Battery device: $BATTERY"
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# Get battery state and percentage
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STATE=$(upower -i "$BATTERY" | awk '/state:/ {print $2}')
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PERCENT=$(upower -i "$BATTERY" | awk -F'[:%]' '/percentage:/ {gsub(/ /,"",$2); print $2}')
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echo "$(date '+%Y-%m-%d %H:%M:%S') Battery state: $STATE, percentage: $PERCENT"
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# Only notify if discharging and below threshold
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if [ "$STATE" = "discharging" ] && [ "$PERCENT" -lt "$THRESHOLD" ]; then
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notify-send -u critical -t "$EXPIRY_MS" "Battery low" "Battery at ${PERCENT}% and discharging."
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echo "$(date '+%Y-%m-%d %H:%M:%S') Notification sent: Battery at ${PERCENT}% and discharging."
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fi
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