What is awk sed unix?
How many root directories exist in unix?
Why sockets are used?
What is unix for?
Why does it take so long to detect that the peer died?
Tell me when should we use thread-safe "_r" library calls?
Tell me how to protect a process from others to kill?
Explain the system calls used for process management?
How do you change directories in unix?
How to display the contents of a file?
What is a sae socket?
What is the difference between read() and recv()?
Is unix multiuser?
Why do we need sockets?
Which are typical system directories below the root directory?