What Does This /proc Directory Do?

“The linux file system to those who are familiar with it is
quite sensible and logical in its organisation. If you are familiar
with the deep and dark secrets you will find many things that will
surprise you and make you go aaah. One of those is the /proc
directory.

“This is perhaps the most mysterious directory in the whole
linux file system and rightly so. With this directly you are
viewing and controlling the most intimate parts of the linux
system. The kernel. In this directory you can control how the
kernel views devices, adjust kernel settings, add devices to the
kernel and remove them again. In this directory you can directly
view the memory usage and IO statistics. You can see which disks
are mounted and what file systems are used. In short every single
aspect of your linux system can be examined from this directory, if
you know what to look for….”

Complete Story