Unix Interview Questions
Questions Answers Views Company eMail

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

Perot Systems, Cosmic Infotech,

5 4709

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

4 6309

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 4610

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

2 3018

to list a particular line in the file

5 3618

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

Syntel, MEIT,

5 7058

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

5 5291

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

2 6508

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


4 7807

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


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?


2 4521

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


7 6842

What is the difference between pipe and xargs?

CTS, Amazon,

2 7443

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


4 7809

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


7 8111

Un-Answered Questions { Unix }

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


i am prepairing for 2+ yrs exp in oracle/unix production support,can u tell me which type issue comes in server plz help


. Using sed and grep, write a command which lists files and directories with following properties: (i) created in 1999 (ii) with user's as owner and group


I want to invest in learning things that will get me good jobs in future. But wondering if Unix knowledge is something that is a MUST have or is it better to do any Data-warehouse tool (cognos, Qclik view, ETL etc..). Please suggest me.


How can I force a socket to send the data in its buffer?


How do I convert a string into an internet address?


hw will u use awk in replacing cahrs and files


Why does the sockets buffer fill up sooner than expected?


Explain how and when a DNS request is solved when a user tries to surf to the site www.abcdeg.in .Assume the user machine uses a local name server and sits on another network other than www.abcdef.in.


What are the events done by the Kernel after a process is being swapped out from the main memory?


Whats the difference between select() and poll()?


Why does it take so long to detect that the peer died?


i m putting 2.6yrs fake exp in oracle/unix production support i want to know some real time issues,like tell me the challenging issue u ever faced? my project is credit card application plz help me!


What are the main differences between Apache 1.x and 2.x?


When i run a programm of orphan process. Instead of getting child's parent (ppid)=1 ..i get 1400 and it varies as per system. How can i findthe right soluion??? My pgm: #include # include int main() { int pid; pid=fork(); if(pid < 0) {exit(-1);} else if(pid==0) { printf("Child Process is Sleeping ..."); sleep(10); printf("Orphan Child's Parent ID : %u ",getppid()); } else { printf("Parent Process Completed ... %u ",getpid()); exit(0); } return 0; } Output: