14 lines
241 B
Bash
14 lines
241 B
Bash
|
#!/bin/bash
|
||
|
|
DEV=/sys/class/backlight/backlight
|
||
|
|
BL=$(cat $DEV/brightness)
|
||
|
|
MAX=$(cat $DEV/max_brightness)
|
||
|
|
|
||
|
|
if [ $BL -lt 5 ]; then
|
||
|
|
BL=$((BL + 1))
|
||
|
|
else
|
||
|
|
BL=$((BL + ( BL / 4 )))
|
||
|
|
fi
|
||
|
|
if [ $BL -gt $MAX ]; then
|
||
|
|
BL=$MAX
|
||
|
|
fi
|
||
|
|
echo $BL > $DEV/brightness
|