38 lines
976 B
Bash
Executable file
38 lines
976 B
Bash
Executable file
#!/bin/bash
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brightness_file="/sys/class/backlight/intel_backlight/brightness"
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min_brightness=1
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max_brightness=96000
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# Check if an argument is provided
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if [[ -z $1 ]]; then
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echo "Error: Number argument is missing."
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exit 1
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fi
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# Retrieve the argument value
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number_to_add=$1
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# Validate if the argument is a number
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if ! [[ $number_to_add =~ ^-?[0-9]+$ ]]; then
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echo "Error: Invalid number argument."
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exit 1
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fi
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# Read the current brightness value from the file
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current_brightness=$(cat "$brightness_file")
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# Add the desired number to the current brightness
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new_brightness=$((current_brightness + number_to_add))
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# Enforce minimum and maximum brightness values
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if (( new_brightness < min_brightness )); then
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new_brightness=$min_brightness
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elif (( new_brightness > max_brightness )); then
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new_brightness=$max_brightness
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fi
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# Write the new brightness value back to the file
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echo "$new_brightness" >> "$brightness_file"
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eww update brightnessValue="$new_brightness"
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