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Linux Interview Questions and Answers

What is Linux?
How many flavors of Linux are available?
What is the latest version of Linux you are using?
What is the difference between Linux and Sun Solaris?
What is the difference between Ubuntu and Linux?
Do you have experience in any other operating system like Windows 2003 and 2010?
What is gzip?
What is tar?
What is unzip? How do you add unzip software in Linux?
What is bash?
What is Linux kernel?
What is the difference between swap and main memory?
What is the difference between Linux (BASH) and Windows (DOS)?
Do you have experience in writing shell scripts?
How good you are at writing shell scripts?
How do you execute the shell scripts in Linux?
For example if a user has permissions 777? What are the rights that user will have?
Have you worked on cloud?
Do you know how to add the hard disks in Linux instantly?
How familiar are you with the grep command?
What is the difference between vi and cat?
How do you save the file in vi editor?
How to remove file and folder using rm command?

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