What is unix and why it is used?
What is typeset in unix?
How to display n-th line of a file in Unix?
What does tr H do in unix?
What is unix for?
What are the basic responsibilities of a shell?
Which are typical system directories below the root directory?
Define a process group.
What are the advantages of unix operating system?
Explain how do we change file access permissions?
Is unix multiuser?
What is a shell?
What is a filter in unix? Give an example.