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

Unix Commands Interview Questions

Questions Answers Views Company eMail

describe the escaping sequence characteres in unix

1 8124

Write a grep (or grep) command that selects the lines from a file that have exactly three characters.

Mac, Nokia,

24 41245

What is an Environment Variable?

CTS,

4 12103

what is the use of ls -l command & what is the information it gives about user ?

5 10386

why unix operating system provides more security than other operating systems?

4 17304

why unix commands can be divided into internal and external commands?

Informatica,

3 12259

Which RAID Levels supported by LVM?

5 13297

Where can I get the free download of Unix by Yeswant Kanetkar?

5 9230

can we use cat command as an editor ..???

TCS,

12 24182

How can we "forked" process in UNIX? How then recognize in any of the branches we?

NIIT,

2 7372

How does one process we can start an executable file? How to get the PID process, which we started?

6 11670

how many internal commands is there in UNIX?

TCS, Virtusa,

3 16936

How to set sticky bit, or it have any seperate directory to create sticky bit in sunfir servers. Please help me , i don't no the exact answer?

HCL, Wipro,

4 12700

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 37149

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 25435

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Un-Answered Questions { Unix Commands }

How do you grep recursively?

1154

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

1124

What does sed command do in unix?

1250

What is ‘ps’ command for?

1241

What are filter commands in unix?

1260

What happens when we execute a unix command?

1199

What do know about tee command?

1222

What is grep r?

1160

What is a command and examples?

1283

Who wrote grep?

1110

Can you explain a little bit about command substitution?

1164

What is grep and how do you use it?

1175

What are file commands?

1288

How does shebang work?

1122

Why is awk called awk?

1136

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