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

Unix Interview Questions

Questions Answers Views Company eMail

how will you login one server's shell prompt to an another server?

5 8013

how will you convert a general file to a hidden file?

4 9635

hi i have directories within the directory. Now i want to copy the directory along with all directories included in it to one location by using copy command? what is the command

ACS, Span Systems,

2 6753

What is the different between UNIX command and UNIX shell script?

2 5036

to list a particular line in the file

5 6584

what is the cmd to display the last exit status in UNIX?

MEIT, Syntel,

5 10869

what is the cmd to remove the comment lines from a file and to display the original text without comments? thanks in advance......

5 8743

What is an Unix command to convert HEX value to ASCII value located in any flat file.

2 9683

How can i know my Filesystem and its current usage in my prod UNIX system?

HCL, IBM,

4 12289

I am new to Unix and Unix Shell scripting could you guide me on how to go about these subjects and where to start from with concern to Oracle?. I also would like to know where does UNIX shell Scripting help in terms of development of a application in Oracle? I have no clue in the subject so do help me. Thank You Neelima

2285

Interviewer: Lets say there is a partition of 100GB. When i tried to create a file using touch command, under any directory, it was unable to create the file- '100% full disk space'. I calculated the size of each and every directory on that partition mannually by adding each file size & in came out to be total size 50GB. Then where is the remaining 50GB ? why it is showing disk space 100% full in 'df -h' command?

Infosys,

2 7262

A file has 1000 lines and i want to display only 1st line how to do it? pls ..tel me

CTS,

7 12461

What is the difference between pipe and xargs?

Amazon, CTS,

2 15125

How to find the files that are accessed before 10 minutes?

Amazon,

5 13059

By using which command we can find the CPU utilization time?

Amazon,

7 13521

Un-Answered Questions { Unix }

What are different types of files in unix?

517

What was unix originally written for?

521

what is the time for incident, problem and change management tickets?

2386

Discuss the mount and unmount system calls ?

531

How to work unix commands on windows xp without installing unix o/s in pc?

512

How to move a background job to forward?

521

How does a socket work?

485

How to check logs in unix?

543

For which kind of fault the page is checked first?

535

List some features of unix.

530

What is the command to find maximum memory taking process on the server?

661

Explain about Inodes?

640

What does the command '$ls | wc –l > file1' do?

670

What is a socket set used for?

493

How can you edit a large file without opening it in unix?

504

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