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

Unix Interview Questions

Questions Answers Views Company eMail

How to get the nth word of a line in Unix?

1051

How to remove the last line/trailer from a file in Unix script?

1015

How to remove certain lines from a file in Unix?

993

How to get the last word from a line in Unix file?

959

How to print/display the last line of a file in Unix?

1069

How to reverse a string in Unix?

1039

How to remove the first line/header from a file in Unix?

1064

Explain different types of Unix systems.

961

How to display n-th line of a file in Unix?

1007

What is ‘ps’ command for?

1187

What is the significance of the 'tee' command?

1202

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

1280

What does the command '$ls | wc –l > file1' do?

1235

How is the command '$cat file2 ' different from '$cat >file2 and >> redirection operators ?

1317

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

1237

Un-Answered Questions { Unix }

Which ipc is faster?

981

What is a directory?

964

What does 'mkdir' command do in UNIX?

1314

What is the fork() system call?

940

Is mac unix like?

843

Explain command to view process running?

1139

what is difference between milestone and run-levels in Solaris ?

3097

What is the best free unix based os?

949

Why is it called a shebang?

1193

Explain similarities between thread and process?

986

Why is shebang used?

1132

Describe the term directory?

1443

What is grep and how do you use it?

1118

What is unix orphan process?

1009

How do you kill a job in unix?

1027

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