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 11713

in unix profile contains

BFL,

1 9274

in unix echo is used for

BFL, BirlaSoft, Patni,

10 28776

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 13726

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

IBM,

6 18164

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 15253

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

Mascot,

2 8127

In Unix inter process communication take place using?

TCS,

3 9835

What are the files in /etc directory?

TCS, Wipro,

6 16240

process id for kernell process?

TCS,

4 10368

very first process created by kernell?

TCS,

4 10791

fork()?

TCS,

2 8395

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

Qiscet,

1 4032

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

4 8602

How do you execute a UNIX command in the background?

2 6805

Un-Answered Questions { Unix }

What is unix portability?

933

Explain ‘system calls’ with respect to unix commands?

1099

What is the use of find command in unix?

1159

What is unix mtime?

940

Can a socket have multiple ports?

875

How do you go to a directory in unix?

891

How to log out in unix?

1013

Explain how to use grep command to list find the records of a file containing 10 different strings?

1076

What is the command to view process running?

1113

Differentiate cat command from more command.

1158

Can you explain the method of changing file access permission?

924

What are the devices represented in unix?

951

How do I delete files older than 2 days unix?

971

What is unix command?

1269

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

2927

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