How do I run a whois command?
What is nr in awk command?
Explain iostat, vmstat and netstat.
What command is used to check the current users?
what is the default permission for /etc/shadow file in UNIX
Why is awk called awk?
What are the differences among a system call, a library function, and a unix command?
use of ls command
What is a bash command?
what is the command to list files in a directory in UNIX?
How many bits use for MAC address?
Can a process kill itself in UNIX/or in its various versions?
What is the nmap command?