What are a shell in unix and its types?
Is unix still around?
Was unix the first operating system?
Can you explain the method of changing file access permission?
What is the core of unix operating system?
What is umask in unix?
What do you understand by the term kernel?
What is the difference between a single dot and double dot in unix?
How to create a blank file in unix?
What are the advantages and disadvantages of unix operating system?
How do I find a pattern in unix?
Which data structure is used to maintain the file identification?
briefly describe the shell's responsibilities?