16 lines
300 B
Text
16 lines
300 B
Text
|
#!/bin/bash
|
||
|
|
kbdb='/sys/devices/platform/applesmc.768/leds/smc::kbd_backlight/brightness'
|
||
|
|
step=25
|
||
|
|
current=`cat $kbdb`
|
||
|
|
new=$current
|
||
|
|
if [ "$1" == "up" ];then
|
||
|
|
new=$(($current + $step))
|
||
|
|
elif [ "$1" == "down" ];then
|
||
|
|
new=$(($current - $step))
|
||
|
|
fi
|
||
|
|
if [ $new -le 0 ];then
|
||
|
|
new=0
|
||
|
|
fi
|
||
|
|
echo $new > $kbdb
|
||
|
|
|