Linux Interview Questions and Answers for Freshers - 2

Question: 6

What is Command mode and Input mode?

In command mode all the keys on the keyboard become editing commands. In the input mode, the keyboard behaves as a normal typewriter.

Question: 7

How the keys of keyboard are divided by Common PC editors?

Common PC editors divide the two functions among the keys of keyboard. 1. Alphabetic character keys are used to input. 2. The functional keys and control keys are used to edit commands. Such PC editors can rely on the extended keyboards and the number of keys is ever increasing.

Question: 8

Which is called as the end-of-file character?

When we have completed our work, we have to inform the computer that we have finished our work. This is achieved by giving the command Ctrl+ D in a separate line. Ctrl+ D character is the end –of- file character for Linux file.

Question: 9

Define Expression command?

The expr command is used to evaluate arithmetic expressions. The output of this command is sent to the standard output (screen). The command expr then converts these characters into numbers and the addition is done afterwards.

Question: 10

What is tee command?

The tee command is just like the T pipe. It copies standard output to the file.