Command-Interpreter System

• Many commands are given to the operating system by control statements which deal with:

1. Process Creation and management
2. I/O Handling
3. Secondary-storage management
4. Mail-memory management
5. File-system access
6. Protection
7. Networking
1. 
   

• The program that reads and interprets control statements is called variously:

1. command-line interpreter
2. shell (in UNIX)