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

Unix Interview Questions

Questions Answers Views Company eMail

Assume that a file’s permissions give you read and write access. What operations can you perform on the file if it is in a directory which has “r”(read) only process? What operations can you perform on the file if it is in a directory which has “x”(execute) only access?

1 6817

When the shell is reading the command line what is the difference between text enclosed between double quotes ( ” ) and text enclosed between signal quotes ( ’ )?

3 8356

The rm command removes links to file. What does this mean? How then is a file deleted from the file system?

5 11954

Assume the following files are in the working directory prompt> ls -l tasks -rw-r--r-- 1 alex student 1423 Feb 21 14:01 tasks What command can Alex use to give everyone permission to write to the file? What will the ls -l command display if he does so?

Infosys,

10 15463

tell me similarities between thread and process

Tanla Solutions,

4 34139

what is mean by kernal?

Excel,

9 12875

describe the escaping sequence characteres in unix

1 7937

System A can contact system B, but not in reverse, not firewall, not tcp wrappers, what is the reason ?

2 4498

Write a grep (or grep) command that selects the lines from a file that have exactly three characters.

Mac, Nokia,

24 39794

What is an Environment Variable?

CTS,

4 11750

If Media Server fails. What are the steps to be followed? Can anyone please reply for this question Thanks, Ganesh

HCL, IBM,

2981

What is file constructing in UNIX/AIX ?

IBM, TCS,

2 8143

How to find the version details of unix? if any application is installed in unix OS how to find the version of that application is it possilbe or not? pls let me know cmd in detail.

HCL,

5 12397

what is the use of ls -l command & what is the information it gives about user ?

5 9996

What is mean by Mac os? Why it is named as like that? Which purprose it is using? Please answer me. Advance thanks.

Excel, GeniusPort,

2 8653

Un-Answered Questions { Unix }

What is the home directory in unix?

890

Explain the mount and unmount system calls?

974

What is nr in awk command?

1141

Who is founder of unix?

1025

Is command prompt unix?

1103

Write a command to kill the last background job?

1034

Is tcp or unix socket faster?

795

What is source unix?

860

what is output mkvg pvname

2144

How do I search for a file in unix command?

981

What is i-node numbers?

1084

How do I search for a file in unix?

884

What is a shell?

889

How does pipe () work?

1046

What are the essential features of the unix operating system?

883

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