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 10913

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?

2661

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

IBM,

9 15165

how you know the ip address of user system?

Polaris,

9 13274

how to list all the hidden files?

Polaris,

10 15026

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

Wipro,

2 9910

why metadb requires a seperate slice to create Solaris volume manager

Wipro,

3245

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

1 6553

What is the command to check ports active in UNIX?

Accenture, IBM,

4 13698

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

TCS, Wipro,

6 16693

how to kernel protected memory?

2419

How to give root privileges without using SU/sudor ?

1 6146

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

3137

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

Infosys,

1 8799

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

TCS,

1 5757

Un-Answered Questions { Unix }

What command will change your prompt to myprompt?

1382

What are the main features of korn shell?

991

Explain command to show the space allocation of files?

1168

What does pipe do in unix?

1020

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

873

Why is it called a shebang?

1245

What is positional parameters in unix?

1116

What is home directory in unix?

950

Using unix command how to display no of records in oracle?

1207

How to list directories in unix?

1039

Can you explain what does the kernel do?

965

What does the “echo” command do?

1191

Describe the concept of “region”.

977

How do I grep multiple patterns in unix?

1067

Why was unix invented?

906

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