20 lines
613 B
Bash
20 lines
613 B
Bash
|
#!/usr/bin/env bash
|
||
|
|
# Toggle brightness to 'sleep' or 'awake', since brightnessctl does not support
|
||
|
|
# percentages of current amount.
|
||
|
|
# Just run the script (twice)
|
||
|
|
|
||
|
|
# Permanent memory
|
||
|
|
previous=''
|
||
|
|
|
||
|
|
if [ -z "${previous}" ] ; then
|
||
|
|
current=$( cat /sys/class/backlight/intel_backlight/actual_brightness )
|
||
|
|
# Doesn't have to be accurate so we can use built-in calculator.
|
||
|
|
echo $(( current / 10 * 3 )) > /sys/class/backlight/intel_backlight/brightness
|
||
|
|
else
|
||
|
|
echo "${previous}" > /sys/class/backlight/intel_backlight/brightness
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Write to file
|
||
|
|
sed -i "s/^previous=.*$/previous=${current:-''}/" "${0}"
|
||
|
|
|