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14 lines
420 B
Bash
14 lines
420 B
Bash
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#!/bin/bash
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# Arch R - Current brightness level for ES info bar
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# Returns brightness percentage
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curbright=$(cat /sys/class/backlight/backlight/brightness 2>/dev/null)
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maxbright=$(cat /sys/class/backlight/backlight/max_brightness 2>/dev/null)
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if [ -z "$curbright" ] || [ -z "$maxbright" ] || [ "$maxbright" -eq 0 ]; then
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echo "N/A"
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exit 0
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fi
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echo $((200 * curbright / maxbright - 100 * curbright / maxbright))
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