- As the user login to the AIX server, the AIX starts the SHELL program.
- The SHELL is a command interpreter.
- It takes the inputs from the users and executes it.
- SHELL is not only the command interpreter it also provide great flexibility to the user.
- SHELL not only read and execute the commands it also read the files written in the form of programs and executes them, these shell program files are known as SHELL scripts. The extension of SHELL script is .sh.   _{Your Comment}