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 9974

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

4 11473

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 7941

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

2 6421

to list a particular line in the file

5 8424

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

MEIT, Syntel,

5 13054

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

5 10679

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

2 10812

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

HCL, IBM,

4 14021

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

2750

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 8335

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

CTS,

7 14971

What is the difference between pipe and xargs?

Amazon, CTS,

2 16631

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

Amazon,

5 15139

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

Amazon,

7 16010

Un-Answered Questions { Unix }

What does touch command do in unix?

1432

What is the chief difference between the –v and –x option s to set?

986

What does awk stand for?

1085

How to perform a system shutdown in unix?

969

What is the condition required for dead lock in unix system?

972

Explain what is protection boundary?

1049

What is unix operating system?

963

Does unix still exist?

1046

Explain pid.

961

2750

What are the pros/cons of select(), non-blocking I/O and SIGIO?

1365

win 3.1 is a

1131

Describe the responsibilities of shell in brief.

892

What are hidden files in unix?

998

What is awk sed unix?

944

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