Searching for particular functions, keywords, header files, etc etc over big source code directory is difficult task for any one. But in Linux everything is easier if you know some tricks. Since it is an open source, you will get many hands to save you for anything.

You may encounter with “extern” keyword often. It becomes prefix of many variables / functions. Its hard to understand them, after a research I will share what I understand, correct me if I am wrong.

Get the latest linux kernel

Follow commands,

[code language=”css”]$ tar -xf linux-x.xx.x.tar.gz[/code]
[code language=”css”]$ cd linux-x.xx.x/[/code]
[code language=”css”]$ make distclean[/code]