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

Unix Interview Questions

Questions Answers Views Company eMail

Which mode is used for allowing file write,read and append mode?

BitWise, TM,

9 20654

Which Command is Used for temprary switch User?

BitWise, IBM,

5 17323

What is use of sed command?

BitWise, Infosys, Reliance,

12 29915

What is the difference between windows environment and Unix environment ?

Oracle,

8 13395

How can u doing testing in Unix environment ?

TCS,

2 9357

hi.when will u come to klnce 4 campus interviews??/

2268

Give the command to display space usage on the UNIX file system.

16 32258

What is the difference between Shell Programming and Shell scripting?

HCL, TCS, Wipro,

10 39368

HOW DO CREATE A NFS FILE SYSTEM

Mind Tree,

4 12248

how unix kernel distinguishes between a normal file and device file ?

Google, IBM, McAfee, Vodafone,

7 18150

what will this do $cat > file.c ?(file.c is a file in current directory)

IBM,

20 23148

what will be the output of ls ~/..

ABC,

27 27915

what is diff between command and utility in unix

3 8036

differentiate between named & unnamed pipe.

Cisco, IIT, ISEC,

11 90927

what is exact definition of operating system?

13 17848

Un-Answered Questions { Unix }

What is the fork() system call?

732

Explain file system in unix.

768

What is difference between find and grep in unix?

759

What are the file permissions and access modes in unix?

721

What does sort do in unix?

692

How do I remove 30 days old files in unix?

705

How to get or set an environment variable from a program?

746

Is it possible to restrict incoming message?

798

How to remove certain lines from a file in Unix?

784

Is unix an operating system?

697

What are data structures that are used for Demand Paging?

784

What is the comma to display different lines that are found when compare two files?

827

Why is it called a shebang?

830

Explain how and when a DNS request is solved when a user tries to surf to the site www.abcdeg.in .Assume the user machine uses a local name server and sits on another network other than www.abcdef.in.

4731

Enumerate some of the most commonly used network commands in unix?

893

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