On 2009-12-06 06:22 +0100, Brian Ryans wrote: > I am attempting to adjust brightness via '/proc/acpi/ibm/brightness', > but I get permission denied if I do it via sudo -- I have to su to root > in order to do the adjustments. Log at [1]. > > [1] > bry...@esterhazy:~$ sudo echo up > /proc/acpi/ibm/brightness
This does not work because it is your shell, not sudo, that does the redirection, as you can see in the error message: > bash: /proc/acpi/ibm/brightness: Permission denied Use one of the following commands: $ echo up | sudo tee /proc/acpi/ibm/brightness $ sudo sh -c "echo up > /proc/acpi/ibm/brightness" See https://help.ubuntu.com/community/RootSudo#Downsides%20of%20using%20sudo. Sven -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
