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

Unix Commands Interview Questions

Questions Answers Views Company eMail

Suppose 1000 processes are running on the system out of those if you have to show only certain process ids which command will you use?

5 12925

What is the syntax of grep command and what is its use?

6 12372

How do you move a process which is running background to foreground?

9 18140

How do you stop a running process?

7 16941

What is the procedure of "at" and crontab" commands?

4 12016

Which command will you use to change the permissions on file?

7 11219

What is the use of pipes?

4 9646

Through which command will redirect output to bOth screen and files at the same time?

3 11118

How do you know about running processes of a particular user?

11 21540

How do you remove a crontab file?

6 19147

What is the basic difference between unix and windows operating systems?

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43 181426

How do you find path of a directory? Give its syntax.

7 16554

In vi editor how do you execute unix commands?

10 22365

what is the use of "test" command in unix?

4 21486

Give a regular expression that finds two things, try to come up with regular expressions that find each individually using "egrep" command?

5 15050

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Un-Answered Questions { Unix Commands }

Is grep faster than awk?

1053

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

1413

What is pipe command in unix?

1312

Write a command to kill the last background job?

1112

What does grep v grep do?

1095

What do know about tee command and its usage?

1200

Explain command to display different lines that are found when compare two files?

1188

What is used to type command?

1068

Which command will print your home directory on screen?

1093

What is the command to compare two files in unix?

1129

Which command is used to create a directory?

1180

How do I find previous commands in unix?

1200

What is grep r?

1115

What do know about tee command?

1176

Why is shebang used?

1143

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