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Unix Interview Questions

What is #define?why it is used?Give an example.

How to remove blank space at the end of the line in vi editor ?

What is the easiest method to create a file on UNIX?

What is the finger command?

How can you find your id on a system?

How can you find all the processes on your system?

How can you find dead processes?

What is redirection and how is it used?

The system administrator tells you that the system hasn't been rebooted in 6 months, should he be proud of this?

What is an inode?

What is the purpose of the grep command?

How do you create a decision tree in a shell script?

Can you remove an open file under UNIX?

What command is used to remove a file?

What command is used to type files to the screen?

How can you determine the number of SQLNET users logged in to the UNIX system?

How can you determine the space left in a file system?

What is a zombie?

How can a parent and child process communicate?

How can you get/set an environment variable from a program in UNIX?

List the system calls used for process management in UNIX?

Predict the output of the following program code?

Predict the output of the following program code in UNIX?

Back to UNIX Operating System Interview Questions and Answers page Question : Explain UNIX fork() system call.

What are various IDs associated with a process in UNIX OS?

Brief about the initial process sequence while the UNIX system boots up.

What is a UNIX OS shell?

How does the inode map to data block of a file in UNIX OS?

Discuss the mount and unmount system calls in UNIX OS?

How do you create special files like named pipes and device files in UNIX OS?

What is a FIFO in UNIX OS?

What are links and symbolic links in UNIX OS file system?

Back to UNIX Operating System Interview Questions and Answers page Question : How do you change File Access Permissions in UNIX OS?

What are the Unix system calls for I/O?

Brief about the directory representation in UNIX OS?

What is inode in UNIX OS?

How are devices represented in UNIX OS?

What is the easiest way to store variables and explain?

Explain about fork?

Describe the process of ?spname??

What function does ?errno? do?

Explain about read slow?

What are the special arrangements to make a terminal i/p and o/p?

Explain abut low-level I/O?

Suppose that you are using a terminal in which the screen size is bigger than the normal 24 lines. If you want to use p and take full advantage of your terminal capabilities what choices are open to you?

Explain about ZAP?

Describe about the root file system?

How to search files for lines that match a pattern?

Explain about cat?

How to get a computer aided instruction?

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