Unix Interview Questions
Questions Answers Views Company eMail

Explain mount and unmount command.

592

What is the fork() system call?

530

What are the possible return values of kill() system call?

481

Explain the method of changing file access permission?

522

What are the pros of executing processes in the background?

466

What is the ‘nohup’ in unix?

504

Can you explain what does the kernel do?

495

What is alias mechanism? Explain.

520

Enlist common shells with their indicators.

531

Name the key features of the korn shell.

527

Explain the following statement, “it is not advisable to use root as the default login.”

480

How can you edit a large file without opening it in unix?

497

How would you display the last line of a file?

494

Explain file system in unix.

494

Differentiate swapping and paging.

464


Un-Answered Questions { Unix }

List some features of unix.

526


What are the layers of unix operating system?

516


What are states that the page can be in, after causing a page fault?

580


Name the data structure used to maintain file identification?

544


Explain mount and unmount command.

592






What difference between cmp and diff commands?

695


Whats the difference between select() and poll()?

1194


Describe the responsibilities of shell in brief.

469


Name the general commands in using unix os for a beginner?

601


What are the core concepts of unix

516


How does unix work?

469


Describe the term inode?

598


How do you determine and set the path in unix?

507


How to write the program on full-duplex communication on bidirectional?

521


What does the md command do?

550