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 12915

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

6 12353

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

9 18115

How do you stop a running process?

7 16920

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

4 12000

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

7 11205

What is the use of pipes?

4 9628

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

3 11109

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

11 21500

How do you remove a crontab file?

6 19123

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

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43 181280

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

7 16532

In vi editor how do you execute unix commands?

10 22333

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

4 21473

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

5 15032

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Un-Answered Questions { Unix Commands }

How do you grep a case insensitive?

1053

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

1169

Explain ‘system calls’ with respect to unix commands?

1099

What is nr in awk command?

1212

What is the general format of unix command syntax?

1947

What is the command to view process running?

1113

What does the metacharacter mean?

1141

What are filter commands in unix?

1204

What does this command do,"$more readme.txt“?

1162

What does #!/ Bin sh do?

1069

Why is shebang used?

1133

What is the functionality of a top command?

1114

Can you explain a little bit about command substitution?

1118

What do chmod command do?

1233

What are the commands in UNIX to list the files in a Directory?

1192

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