Unix Interview Questions
Questions Answers Views Company eMail

what is the functionality of kernel in unix architecture?

12 15998

Sorry to all Technical person for mistake of Question. Now i am post currect question Why copied file permission is changed in destination. When i give all permission i.e 777 to file and copy that to other location in destination the permission is 755. But if give permission 555 in destination that file permission is 555 and if give permission 444 to file after copy in destination the file permission is 444. These all are happening in normal user. How the umask value is calculate here really i am not understand. Please write the proper answer. Thanks in Advance

TCS,

3 4635

What is RC (return code)? What is useful for? Which are the common values?

Accenture,

1 4316

What does "bulk loading of a table" mean? Can you describe advantages or disadvantages of using these features?

Accenture,

2 6140

What is a "parameter card" and what is useful for?

Accenture,

1 5730

Suppose you have a scheduling chain where the process 1 is a predecessor of the process 2 and both of them are scheduled every Monday at 8.00pm. Will I find execution log of process 1 every Tuesday morning? And what about the other one? Why?

IBM, Accenture,

1 2044

How i'll delete a particular line from the file? Please give answer as soon as possible. Thanks in advance.

IBM,

12 12905

What is the number of the masked code ee@?

Amazon, Accenture, Amdocs,

2 23569

What is difference between SSH V1 and SSH V2? What are drawbacks of SSH V2?

Wipro,

1 7175

How to display a file name which has zero bytes in size.

Polaris,

11 10664

what is the difference between KILL and KILL -9?

Informatica, Nutanix,

5 19482

What are the general Commands in using Unix OS for a beginner? how many commands you know in that?

2 3785

what is the difference between SED and GREP ? Which one is more better and why?

IBM,

4 23296

how to find the 51th record of a file containing 100 records in unix.

IBM,

12 12391

how to use grep command to list find the records of a file containg 10 different strings

IBM,

5 7690



Un-Answered Questions { Unix }

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

179


How can I write a multi-homed server?

378


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:

590


What is the difference between SO_REUSEADDR and SO_REUSEPORT?

165


what is output mkvg pvname

380


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!

7560


Why do I get EPROTO from read()?

146


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

1213


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

790


hw will u use awk in replacing cahrs and files

1513


In detail elaborate the system? What is driver?

596


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

1488


. 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

1187


what is the advaantage of each user having its own copy of the shell?

826


Am using Mac OS 10.4.11 on an Imac (PPC) Internal hard disk got named disk0s3 and will not mount. What commands can be used in TERMINAL to rename the internal hard disk to C96?

928