Question

To perform decision depending on the fulfillment of certain criteria, ____ is used.

(a) if

(b) else

(c) for

(d) if and else

This question was addressed to me by my college professor while I was bunking the class.

I'd like to ask this question from Logical Operators and Conditional Execution topic in section Essential Shell Programming of Unix

Answer 1

Correct option is (d) if and else

To explain: The if and else statement makes two-way decisions depending on the fulfillment of certain criteria. These statements are used in UNIX as they are used in other programming languages. For example,