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 27951

hw will u use awk in replacing cahrs and files

3249

How to see unused port number in Solaris?

HCL,

2 12808

What is the difference between udp and tcp?

HCL, TCS,

2 10830

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

IBM,

9 14907

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

Wipro,

2 9823

why metadb requires a seperate slice to create Solaris volume manager

Wipro,

3172

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

1 6487

What is the command to check ports active in UNIX?

Accenture, IBM,

4 13556

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

TCS, Wipro,

6 16487

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

Infosys,

1 8708

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

12 18559

how to check a file system type

Wipro,

7 14812

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 12973

What does mkdir up2date; touch outdated up2date do?

2 6719

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Un-Answered Questions { Unix Commands }

What is in grep command?

1175

Describe the zip/unzip command using gzip.

1162

What is grep and how do you use it?

1118

What is “chmod” command?

1184

What is the difference between grep and grep?

1137

Explain ‘system calls’ with respect to unix commands?

1098

What is command substitution?

1376

Name the various commands that are used for the user information in unix.

1092

Is there a way to erase all files in the current directory, including all its sub-directories, using only one command?

1409

What is the behavioural difference between cmp and diff commands?

1289

What is unix command?

1267

What is merge command in unix?

1514

What are bash commands?

1169

Why is awk called awk?

1081

What are the unix commands?

1099

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