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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 6120

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 7612

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

 5 10874

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 14157

tell me similarities between thread and process

Tanla Solutions,

4 33044

what is mean by kernal?

Excel,

9 11554

describe the escaping sequence characteres in unix

 1 7513

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

 2 3989

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

Mac, Nokia,

24 36293

What is an Environment Variable?

CTS,

4 10884

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

HCL, IBM,

2730

What is file constructing in UNIX/AIX ?

IBM, TCS,

2 7462

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 11379

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

 5 8988

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 8081

Un-Answered Questions { Unix }

What are the layers of unix operating system?

668

Can you explain a little bit about command substitution?

785

What are new features added in nfs4?

677

How to display n-th line of a file in Unix?

717

Why unix terminals are called dummy terminals?

695




Does mac use unix?

652

How to calculate the number of words in a file?

646

What are the advantages of unix operating system?

672

Write down some common shells with their indicators?

804

What is time_t?

755

What is the fork() system call?

677

What is sae socket?

583

How do I check disk space in unix?

636

Enlist common shells with their indicators.

731

How do I find the port number of pid in unix?

622

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