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- #!/bin/sh
- # script to decrease the display brightness by $1%
- [ -z "$1" ] && echo "Error: please give percent as argument" && exit 1
- #xbacklight -dec "$1"
- #exit
- device=$(brightnessctl -l | grep "class 'backlight'" | tail -n +3 | awk '{print $2}' | tr -d "'")
- if brightnessctl -l | grep "class 'backlight'" | grep -q "^Device 'intel_backlight'"; then
- device="intel_backlight"
- fi
- brightness=$(brightnessctl -d "${device}" | grep Current | awk -F '[)(]' "{print \$2 - $1}")
- brightnessctl -d "${device}" set "$brightness"%
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