Unix Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Unix Interview Questions

Questions Answers Views Company eMail

solaris Run level?

3 6522

boot process?

2 7782

Assume that there are two different filesystems as /abc and /xyz. There is a file A under filesystem /abc which has to be linked to filesystem /xyz. Which link will you use - soft link or hard link? why?

Accenture,

1 6137

how to create tree of processes. one parent and 3 childs.

HCL,

1 5336

How to know whether the message queue is empty or not.

Fibcom, HCL,

1 3639

What is Inode.

HCL,

2 5535

I have one flat file,in this file how many columns are there i don't know,but one ename column is there , just i want to cut the surname, so how to cut the surname, any one know the answer please guide me ? ename ----- tapan kumar nayak bala murugan kutal chkrobarthy biswo My output is like that OUTPUT ------ nayak murugan chakrobarthy biswo

Cap Gemini,

3538

"ls" command is showing all the subdirectoary and files which are present in the current directoary, i want to cut only directoary name. How to cut only name ?

Cap Gemini,

2 4732

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:

2313

How do Sockets Work?

1 2608

What is with the second parameter in bind()?

1 2633

If bind() fails, what should I do with the socket descriptor?

1 3159

When should I use shutdown()?

Wipro,

1 2751

What are Sockets?

1 2531

How can I tell when a socket is closed on the other end?

1386

Un-Answered Questions { Unix }

What are the advantages of unix operating system?

1036

How many sockets can a cpu have?

884

How do we change file access permissions?

1181

What is directory unix?

988

What does awk stand for?

1141

What is af_unix?

905

Suppose I have one column with data smithjohnmichale the o/p should be smith,john, michale how we do in unix?

922

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

1355

Which language unix is written?

1081

How do I use grep to find a file?

1160

How is a socket created?

965

What is .login file in unix?

1048

Is darwin unix?

997

Explain what is protection boundary?

1090

What is the best free unix based os?

985

For More Un-Answered { Unix } Questions Click Here