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 10114

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

4 11622

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 8011

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

2 6549

to list a particular line in the file

5 8592

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

MEIT, Syntel,

5 13207

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

5 10831

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

2 10894

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

HCL, IBM,

4 14165

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

2795

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 8420

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

CTS,

7 15190

What is the difference between pipe and xargs?

Amazon, CTS,

2 16742

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

Amazon,

5 15313

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

Amazon,

7 16236

Un-Answered Questions { Unix }

How do you delete a file in unix?

1026

How to protect a process from others to kill?

1001

What is ctrl d?

1150

What is a parent directory in unix?

960

Explain how do you create special files like named pipes and device files?

990

Describe a link in unix.

1600

Describe the term directory?

1517

How do I search for a file in unix?

956

What do you understand by the term filters?

1005

Is there a way to erase all files in the current directory, including all its sub-directories, using only one command?

1448

Describe the term inode?

1166

Explain the importance of directories in a unix system

1102

What does #!/ Bin sh do?

1111

List the distributions of unix.

1007

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

3137

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