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

Unix Interview Questions

Questions Answers Views Company eMail

What is the difference between udp and tcp?

2 10811

Am using Mac OS 10.4.11 on an Imac (PPC) Internal hard disk got named disk0s3 and will not mount. What commands can be used in TERMINAL to rename the internal hard disk to C96?

2606

their is a file1,file2 and i want to append file1 data to file2?

IBM,

9 14846

how you know the ip address of user system?

Polaris,

9 12955

how to list all the hidden files?

Polaris,

10 14682

what is the default permission for /etc/shadow file in UNIX

Wipro,

2 9801

why metadb requires a seperate slice to create Solaris volume manager

Wipro,

3156

which script will invoke first ,when /etc/init.d starts

1 6474

What is the command to check ports active in UNIX?

Accenture, IBM,

4 13536

what these two commands prints "echo test","cat test"?

TCS, Wipro,

6 16441

how to kernel protected memory?

2365

How to give root privileges without using SU/sudor ?

1 6064

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

3087

How to get the last ten lines of a file using awk utility?

Infosys,

1 8688

Is this the command to connect oracle from unix? sqlplus -s username/password. Then what is the -S here...????

TCS,

1 5674

Un-Answered Questions { Unix }

Explain how do you execute one program from within another?

965

Explain the terms ‘system calls’ and ‘library functions’ with respect to unix commands?

1217

Explain linking across directories?

946

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

828

How to perform a system shutdown in unix?

963

What are grep patterns?

1080

Does windows use unix?

916

What are the basic responsibilities of a shell?

1780

What is the use of awk command in unix?

1121

What are states that the page can be in, after causing a page fault?

1019

List the distributions of unix.

950

What is merge command in unix?

1506

What is the main goal of the Memory Management?

1107

What is unix computer?

994

What can you tell about shell variables?

949

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