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

Unix Interview Questions

Questions Answers Views Company eMail

How to check whether some services are running in another server or not? Suppose i am currently in a server named A.I want to check whether some services are running in server B without logging into the server B.

Amazon, MBA, Syntel, TCS, Unisys,

3 16539

What is the output of : $ ps-e $ ps-a commands

IBM,

5 31759

Which is the command used to find out currently executing Process in UNIX?

Amazon,

6 12652

What is the protocol for PING command?

IBM,

1 7653

How many bits use for MAC address?

Google,

7 11093

what is the default signal kill in unix?

IBM,

8 16530

what is the difference between npar and vpar in HP-UX?

CSC,

1 14679

What is clustering in HP and how it's work?

HP,

1 5678

how to make IGNITE-BACKUP in HP-UX?

HP,

4 19384

what is Online(STM) and offline diagnostics in HP-UX?

HP,

2 8899

What is LILO?

2 5340

How to find and replace the below command?

HCL,

2 10196

How will you know who are the users logged in to the system before 15 minutes?

Amazon,

4 14918

1)what is grep|sort give example? 2)what are the test commands

Cap Gemini,

1 6148

how do you move a backgrounnd job to forward?

Cap Gemini,

3 8222

Un-Answered Questions { Unix }

Explain what is protection boundary?

1029

Tell me how to protect a process from others to kill?

828

What are the general commands in using unix os for a beginner?

1167

What does grep v grep do?

1073

Where is unix operating system used?

915

What is difference between grep and find command in unix?

1209

Are sockets files?

876

Which command is used to delete all files in the current directory and all its sub-directories?

1254

What does unix like mean?

927

How do I run a unix script?

940

Write a script that prints out date information in this order: time, the day of week, day number, month, year(sample output: 17:34:51 pdt sun 12 feb 2012)

1214

How do I clear my terminal history?

1147

What are the types of sockets?

925

What is the function of grep command in unix?

1179

What is Process id in unix?

1001

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