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 33661

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 9152

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

Accenture,

1 8278

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

Accenture,

2 13079

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

Accenture,

1 10364

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 5320

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

IBM,

12 23827

What is the number of the masked code ee@?

Accenture, Amazon, Amdocs,

2 33182

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

Wipro,

1 12024

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

Polaris,

11 21844

what is the difference between KILL and KILL -9?

Informatica, Nutanix,

5 28813

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

2 7162

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

IBM,

4 37066

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

IBM,

12 25384

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

IBM,

5 14030

Un-Answered Questions { Unix }

What is command statement?

1234

Is unix cli or gui?

922

How to check the date in unix?

1081

How do you change directories in unix?

1017

Is unix os free?

954

Why is it that it is not advisable to use root as the default login?

1030

What is the core of unix operating system?

970

Tell me when should we use thread-safe "_r" library calls?

940

What is ant_build.sh? Have u seen that file?

2374

What is .sh file?

1255

How do I create a directory in unix?

989

How do you kill a job in unix?

1092

What does cp mean in unix?

905

What is the symbol in unix?

969

Explain ‘system calls’ with respect to unix commands?

1148

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