What is command substitution?
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what does the job command do?
What is grep r?
what these two commands prints "echo test","cat test"?
Differentiate cat command from more command.
what is the difference between SED and GREP ? Which one is more better and why?
What is the pipe command?
what is the default permission for /etc/shadow file in UNIX
What is the functionality of a top command?
Why we are using UNIX OS when we are doing the testing in our application?
How to see unused port number in Solaris?
What is clustering in HP and how it's work?
Can you enlist some commonly used network commands?