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

Unix Commands Interview Questions

Questions Answers Views Company eMail

how to delete entire records in unix ?

Cap Gemini,

13 27196

hw will u use awk in replacing cahrs and files

3184

How to see unused port number in Solaris?

HCL,

2 12651

What is the difference between udp and tcp?

HCL, TCS,

2 10701

their is a file1,file2 and i want to append file1 data to file2?

IBM,

9 14533

what is the default permission for /etc/shadow file in UNIX

Wipro,

2 9695

why metadb requires a seperate slice to create Solaris volume manager

Wipro,

3087

which script will invoke first ,when /etc/init.d starts

1 6398

What is the command to check ports active in UNIX?

Accenture, IBM,

4 13346

what these two commands prints "echo test","cat test"?

TCS, Wipro,

6 16223

How to get the last ten lines of a file using awk utility?

Infosys,

1 8573

How to add content of one file into another file at the beginning

12 18052

how to check a file system type

Wipro,

7 14549

How to replace the exact word in vi editor?? suppose a file contains words like amaze,amazed,amazement in some of the line.But i want to replace only 'amaze' with delight but don't wanna replace amazed or amazement. thanks

Polaris, Tech Mahindra,

6 12686

What does mkdir up2date; touch outdated up2date do?

2 6560

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Un-Answered Questions { Unix Commands }

What is grep r?

1047

Explain command to show the space allocation of files?

1076

What is the difference between cat command and more command?

1130

Which command is used to restrict incoming messages?

1050

What is difference between grep and find command in unix?

1149

What is the first character of the output in ls l command?

1161

How do I search for text in vi?

998

Why is grep called grep?

1237

Who command in unix?

1097

What is sed awk grep?

1077

Is ‘du’ a command? If so, what is its use?

1096

Why is it called a shebang?

1101

What is the command to compare two files in unix?

1059

Which command is used to kill the last background job?

1294

What is the command to view process running?

1075

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