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

Unix Interview Questions

Questions Answers Views Company eMail

Enumerate some of the most commonly used network commands in unix?

1175

How does the system know where one command ends and another begins?

2259

Differentiate cat command from more command.

1156

Is there a way to erase all files in the current directory, including all its sub-directories, using only one command?

1409

What does this command do? Cat food 1 > kitty

1588

Write a command that will output the sorted contents of a file named in.txt and place the output in another file named out.txt, while at the same time excluding duplicate entries.

1 2520

What command will change your prompt to myprompt?

1332

Differentiate cmp command from diff command.

1175

What are the differences among a system call, a library function, and a unix command?

1232

Write a command that will allow a unix system to shut down in 15 minutes, after which it will perform a reboot.

1251

Write a command that will display files in the current directory, in a colored, long format.

1230

Write a command that will find all text files in a directory such that it does not contain the word "amazing" in any form (that is, it must include the words amazing, amazing, or amazing)?

1573

What is the use of the tee command?

1099

What is command substitution?

1376

Differentiate multiuser from multitask.

1020

Un-Answered Questions { Unix }

What are the essential features of the unix operating system?

938

How do you kill a job in unix?

1027

What is s and g in sed command?

1120

why unix commands simpler rather than complex task

4421

Using unix command how to display no of records in oracle?

1166

How the Kernel handles the fork() system call in traditional Unix and in the System V Unix, while swapping?

932

Give the command for finding the current date.

1118

what is wrong with this interactive shell script?

982

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

901

What do chown command do?

1195

Is used to create ordinary files on any unix system?

962

How to null a file in unix?

1172

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

1024

How to reverse a string in Unix?

1039

What are the pros of executing processes in the background?

879

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