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

Unix Interview Questions

Questions Answers Views Company eMail

fork in unix ?

BFL,

4 11884

in unix profile contains

BFL,

1 9335

in unix echo is used for

BFL, BirlaSoft, Patni,

10 29109

The UNIX shell is.... a).does not come with the rest of the system b).forms the interface between the user and the kernal c) does not give any scope for programming d) deos not allow calling one program from with in another e) all of the above

IBM,

2 13861

The very first process created by the kernal that runs till the kernal process is haltes is

IBM,

6 18384

The command grep first second third /usr/you/myfile a) prints lines containing the words first, second or third from the file /usr/you/myfile b) searches for lines containing the pattern first in the files second, third, and /usr/you/myfile and prints them c) searches the files /usr/you/myfiel and third for lines containing the words first or second and prints them d) replaces the word first with the word second in the files third and /usr/you/myfile e) None of the above

IBM,

4 15406

interprocess command in unix be achieved by a)pipes b)messages c)semaphores d)shared memory e)all

Mascot,

2 8206

In Unix inter process communication take place using?

TCS,

3 9973

What are the files in /etc directory?

TCS, Wipro,

6 16476

process id for kernell process?

TCS,

4 10514

very first process created by kernell?

TCS,

4 10940

fork()?

TCS,

2 8484

what is the name os the first os and tell me the year when it was discovered

Qiscet,

1 4089

How do you list the files in an UNIX directory while also showing hidden files?

4 8744

How do you execute a UNIX command in the background?

2 6910

Un-Answered Questions { Unix }

Write a script that prints out date information in this order: time, the day of week, day number, month, year(sample output: 17:34:51 pdt sun 12 feb 2012)

1269

What are drawbacks of ssh v2?

1035

Is the Process before and after the swap are the same? Give reason.

1262

Where is unix used today?

935

Is unix portable?

1042

How to null a file in unix?

1218

Explain about shell aritmetic operators and functions?

1075

What are my options if I want to turn on security with a non-root server ID in a UNIXÂ® environment?

999

What is awk sed unix?

1010

Can you enlist some commonly used network commands?

1158

Is it possible to see information about a process while it is being executed?

1298

Is unix still relevant?

1030

Explain the advantage of executing a process in background?

978

Discuss the mount and unmount system calls ?

1112

What is a socket address?

962

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