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 6408

boot process?

2 7691

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 6049

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

HCL,

1 5267

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

Fibcom, HCL,

1 3570

What is Inode.

HCL,

2 5447

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,

3493

"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 4643

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:

2273

How do Sockets Work?

1 2540

What is with the second parameter in bind()?

1 2574

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

1 3102

When should I use shutdown()?

Wipro,

1 2661

What are Sockets?

1 2459

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

1348

Un-Answered Questions { Unix }

What are bash commands?

1169

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

3046

What are the main features of unix operating system?

962

What are system variables in unix?

1135

What are the file permissions and access modes in unix?

976

Where is unix operating system used?

927

Is it inbetween or in between?

1065

How to log out in unix?

1013

How would you identify daemons in unix?

991

What is the use of cut command in unix?

1377

Explain the importance of directories in a unix system

1066

The syntax of command statement in UNIX

What is af_inet in socket?

828

Explain what are threads?

1045

What is the pipe command?

1190

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