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 9968

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

4 11469

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 7939

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

2 6419

to list a particular line in the file

5 8423

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

MEIT, Syntel,

5 13044

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

5 10677

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

2 10811

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

HCL, IBM,

4 14017

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

2747

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 8332

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

CTS,

7 14965

What is the difference between pipe and xargs?

Amazon, CTS,

2 16628

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

Amazon,

5 15137

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

Amazon,

7 16006

Un-Answered Questions { Unix }

What are the various schemes available?

960

What are the dos commands?

1267

What's better 6pt or 12pt sockets?

822

What are the bits that support the demand paging?

984

What is the search command in unix?

1094

What is the first character of the output in ls l command?

1216

What is the use of grep and egrep in unix?

944

How do I run a unix script?

950

Why is it called a shebang?

1189

What are the hidden files in unix?

1080

How is the command '$cat file2 ' different from '$cat >file2 and >> redirection operators ?

1317

What is the root directory in unix?

963

What do you understand by the term single user system?

949

What does #!/ Bin sh do?

1068

What do you understand by the term filters?

955

For More Un-Answered { Unix } Questions Click Here