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

Unix Interview Questions

Questions Answers Views Company eMail

if we create a file, in that 10 rows(means 1,2,....9,10 like). i want 7 row exactly, which command use in unix? plz send this question.

TCS,

28 35402

Hi All, Can you please let me know how to grep for a particular pattern in unix. I want to print the dates from the file exp.txt. the date pattern is DD:MM:YYYY, I just want to print all the dates from the file exp.txt.

Concentrix, IBM, Symantec, TCS,

8 24805

how to edit the network interface device type in container(zone) in solaris 10?

TCS,

2 6142

What is the procedure to configure MC/SG Cluster services in HP-UX 11i v3 OS Environment?

IBM,

5853

What is Quorum Group? and Quorum Disk?

IBM,

1 6090

What is procedure to configure Mirror rootvg in HP-UX?

IBM, Microsoft,

2 9972

what is the process id for kernel process?

IBM, ITI, Military Engineer Services, Remo, TATA,

8 27915

How do you use Unix for Backend Testing ?

Wipro,

1 9302

1)How to schedule a job,that will periodically execute in second by crontab? 2)I know only second specific time to execute the job. like 10 10 * * * sleep 40&&ps -l>/dev/pts/1 It will execute at 10:10:40 AM but do not know how to execute 15 second,30 second so on at 10:10 am.

Qwest,

3 7865

c program to implement the unix or linux command to implement ls -l >output.txt

Arihant,

5 21846

What is the difference between a shell variable that is exported and the one that is not exported?

2 6248

Why do inode number start from 1 and not 0 ?

3 13725

what is ls -ltd?

HCL,

5 15649

what is the command to print last 8 lines of any text file.

10 14635

How to install scsi driver in unix? give me explanation clearly?

HCL, TCS,

1 7845

Un-Answered Questions { Unix }

Is unix written in c?

756

Name the data structure used to maintain file identification?

952

What is unix environment?

886

Which mode executes the fault handler?

1000

How to perform a system shutdown in unix?

911

Write a command that will allow a unix system to shut down in 15 minutes, after which it will perform a reboot.

1144

Explain the importance of directories in a unix system

998

How does the system know where one command ends and another begins?

2177

What is the difference between cat and more command?

1227

Explain the performance differences between user-space threads and kernel-supported threads.?

1135

How do I create a directory in unix?

892

Which unix shell is best?

913

What is delayed write in unix?

881

Is a directory unix?

822

Who wrote grep?

1015

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