Features of Linux OS

Multi­user & Multi­ process

Many people can use one machine at the same time.

Files  and Process

Data, directory, process, hard disk etc (almost everything) are expressed as a file.

Process is an running program identified by a unique id (PID).

Normal user and Super user

In Linux system, there is one special user for administrator, which can do anything.  This special user is called root or super user.

Normal User $ 

Super User  #    

               

Case Sensitivity

<Linux like UNIX is case­ sensitive ( MYFILE.doc, Myfile.doc, mYfiLe.Doc are different)