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 12863

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

6 12299

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

9 18043

How do you stop a running process?

7 16865

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

4 11966

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

7 11136

What is the use of pipes?

4 9587

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

3 11079

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

11 21405

How do you remove a crontab file?

6 19059

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

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43 180992

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

7 16474

In vi editor how do you execute unix commands?

10 22276

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

4 21448

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

5 15013

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Un-Answered Questions { Unix Commands }

What is grep in bash?

1056

What is a command and examples?

1220

Why is it called a shebang?

1179

Explain the steps that a shell follows while processing a command.

1227

What is the use of cut command in unix?

1367

What is sed awk grep?

1130

What is .sh file?

1175

Explain command to view process running?

1124

What is the size of time_t?

1208

What is time_t?

1108

What are file commands?

1227

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

1155

What does the command ' $who | sort –logfile > newfile' do?

1270

Name the unix command to find how many days the server has been up.

1162

What command is used to check the current users?

1123

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