Unix Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Unix Interview Questions

Questions Answers Views Company eMail

what is the functionality of kernel in unix architecture?

12 33338

Sorry to all Technical person for mistake of Question. Now i am post currect question Why copied file permission is changed in destination. When i give all permission i.e 777 to file and copy that to other location in destination the permission is 755. But if give permission 555 in destination that file permission is 555 and if give permission 444 to file after copy in destination the file permission is 444. These all are happening in normal user. How the umask value is calculate here really i am not understand. Please write the proper answer. Thanks in Advance

TCS,

3 9040

What is RC (return code)? What is useful for? Which are the common values?

Accenture,

1 8208

What does "bulk loading of a table" mean? Can you describe advantages or disadvantages of using these features?

Accenture,

2 13004

What is a "parameter card" and what is useful for?

Accenture,

1 10298

Suppose you have a scheduling chain where the process 1 is a predecessor of the process 2 and both of them are scheduled every Monday at 8.00pm. Will I find execution log of process 1 every Tuesday morning? And what about the other one? Why?

Accenture, IBM,

1 5262

How i'll delete a particular line from the file? Please give answer as soon as possible. Thanks in advance.

IBM,

12 23520

What is the number of the masked code ee@?

Accenture, Amazon, Amdocs,

2 33097

What is difference between SSH V1 and SSH V2? What are drawbacks of SSH V2?

Wipro,

1 11945

How to display a file name which has zero bytes in size.

Polaris,

11 21529

what is the difference between KILL and KILL -9?

Informatica, Nutanix,

5 28631

What are the general Commands in using Unix OS for a beginner? how many commands you know in that?

2 7099

what is the difference between SED and GREP ? Which one is more better and why?

IBM,

4 36920

how to find the 51th record of a file containing 100 records in unix.

IBM,

12 24943

how to use grep command to list find the records of a file containg 10 different strings

IBM,

5 13883

Un-Answered Questions { Unix }

How to get the nth word of a line in Unix?

1052

Is unix only for supercomputers?

883

What is sae socket?

837

What is the difference between SO_REUSEADDR and SO_REUSEPORT?

1807

How does shebang work?

1073

List some of the frequent shells used in unix along with their indicators?

912

What does a pipe(|) do?

920

What is grep short for?

1051

how to sort the content of the file based on numeric values

1789

How to write the program on full-duplex communication on bidirectional(e.g using two pipes)?

1018

Where is the socket located?

895

why metadb requires a seperate slice to create Solaris volume manager

3172

What does find command return in unix?

1160

Explain pid.

963

What happens when we execute a unix command?

1147

For More Un-Answered { Unix } Questions Click Here