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 27826

hw will u use awk in replacing cahrs and files

3241

How to see unused port number in Solaris?

HCL,

2 12795

What is the difference between udp and tcp?

HCL, TCS,

2 10811

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

IBM,

9 14845

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

Wipro,

2 9800

why metadb requires a seperate slice to create Solaris volume manager

Wipro,

3156

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

1 6474

What is the command to check ports active in UNIX?

Accenture, IBM,

4 13536

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

TCS, Wipro,

6 16440

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

Infosys,

1 8687

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

12 18480

how to check a file system type

Wipro,

7 14781

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 12936

What does mkdir up2date; touch outdated up2date do?

2 6702

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Un-Answered Questions { Unix Commands }

What is the functionality of a top command?

1101

What is the comma to show the space allocation of files?

1083

Write a command to display a file’s contents in various formats?

1207

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

1395

What are the unix commands?

1095

Give the command for finding the current date.

1104

Is there any method to erase all files in the current directory, along with its all sub-directories, by using only one command?

1218

What is time_t?

1108

What does 'mkdir' command do in UNIX?

1307

What does #!/ Bin sh do?

1065

Which command will print your home directory on screen?

1078

What is the search command in unix?

1089

Which command is used to copy files?

1171

Explain mount and unmount command.

1212

Which command should you use to find the remaining disk space in unix server?

1304

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