grep . /sys/class/backlight/acpi_video0/*
/sys/class/backlight/acpi_video0/actual_brightness:100
/sys/class/backlight/acpi_video0/bl_power:0
/sys/class/backlight/acpi_video0/brightness:100
egrep: /sys/class/backlight/acpi_video0/device: Is a directory
/sys/class/backlight/acpi_video0/max_brightness:100
egrep: /sys/class/backlight/acpi_video0/power: Is a directory
egrep: /sys/class/backlight/acpi_video0/subsystem: Is a directory
/sys/class/backlight/acpi_video0/type:firmware
grep . /sys/class/ backlight/ acpi_video0/ * backlight/ acpi_video0/ actual_ brightness: 100 backlight/ acpi_video0/ bl_power: 0 backlight/ acpi_video0/ brightness: 100 backlight/ acpi_video0/ device: Is a directory backlight/ acpi_video0/ max_brightness: 100 backlight/ acpi_video0/ power: Is a directory backlight/ acpi_video0/ subsystem: Is a directory backlight/ acpi_video0/ type:firmware
/sys/class/
/sys/class/
/sys/class/
egrep: /sys/class/
/sys/class/
egrep: /sys/class/
egrep: /sys/class/
/sys/class/