Procfs

procfs (process filesystem) is a virtual filesystem to output and change system and process information. It's generated by the kernel and mounted at. The information in the sysfs filesystem replaces more and more system information of procfs.

Installation
You need to activate the following kernel options:

Configuration
Change your fstab to mount procfs at boot time to :

Usage
See the Wikipedia article for the file's purpose.


 * Use cat to read the information, e.g. output the version of the currently running kernel:


 * To set values at runtime - if possible - use echo, e.g. to enable the laptop-mode:


 * To set values at boot time - if possible - create a new file under, e.g. to enable the laptop-mode: