Re: Permission denied when tweaking various /proc knobs (Lenny)

[Sascha Silbe <sascha-ml-debian-user@silbe.org>]

On Sat, Dec 05, 2009 at 11:22:37PM -0600, Brian Ryans wrote:

> bryans@esterhazy:~$ sudo echo up > /proc/acpi/ibm/brightness
> bash: /proc/acpi/ibm/brightness: Permission denied
The redirection is set up by the current shell, i.e. with non-elevated 
privileges. Try this instead:

sudo sh -c 'echo up > /proc/acpi/ibm/brightness'

CU Sascha

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