14 lines
380 B
Plaintext
14 lines
380 B
Plaintext
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#!/bin/bash
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read -r -d '' bl_dir < \
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<(find /sys/class/backlight -mindepth 1 -maxdepth 1 -print0 | head -z -n 1)
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read -r max_bl < "${bl_dir}"/max_brightness
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delta=$((max_bl / 10))
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bl_file="${bl_dir}"/brightness
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read -r bl < "${bl_file}"
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bl2=$((bl - delta))
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if [[ "${bl2}" -lt 0 ]]; then bl2=0; fi
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printf '%s' "${bl2}" | sudo tee "${bl_file}" &> /dev/null
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"${0%/*}"/../avds bl
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