Question

Which one of the following command will change our primary prompt from $ to C>?

(a) PS1=”C> “

(b) PS2=”C>”

(c) PS1=”>C”

(d) PS2=”<C”

This question was posed to me by my school principal while I was bunking the class.

This is a very interesting question from Shell Variables in portion Customizing the Environment & More File Attributes of Unix

Answer 1

The correct answer is (a) PS1=”C> “

The explanation is: The primary prompt string PS1 is the one we normally see i.e. $. But we can change this prompt for our convenience. As we know that the primary prompt string is stored in PS1, we can use the following command to change our prompt.