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 6902

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 8464

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

5 12181

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 15776

tell me similarities between thread and process

Tanla Solutions,

4 34308

what is mean by kernal?

Excel,

9 13119

describe the escaping sequence characteres in unix

1 8028

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

2 4584

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

Mac, Nokia,

24 40419

What is an Environment Variable?

CTS,

4 11894

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

HCL, IBM,

3030

What is file constructing in UNIX/AIX ?

IBM, TCS,

2 8229

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 12597

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

5 10160

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 8760

Un-Answered Questions { Unix }

What is the difference between cat and more command?

1291

What does 'mkdir' command do in UNIX?

1305

Name the key features of the bourne shell.

897

Why unix terminals are called dummy terminals?

1052

How to reverse a string in Unix?

1027

What is the procedure to configure MC/SG Cluster services in HP-UX 11i v3 OS Environment?

5891

How does shebang work?

1063

Can you enlist some commonly used network commands?

1108

Are sockets files?

873

List the distributions of unix.

950

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

826

In what way the protection fault handler concludes?

1063

Is a directory unix?

876

What is the functionality of a top command?

1101

Is it inbetween or in between?

1043

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