Question

Which of the following is a correct initialization of variables to null strings?

(a) x=

(b) x=’ ‘

(c) x=” “

(d) x=, x=’ ‘, x=” “

Answer 1

Correct option is (d) x=, x=’ ‘, x=” “

The best explanation: All shell variables are initialized to null strings by a string. While explicit assignment of null strings can be performed with x=’ ‘ or x=” “ or x=