Question

Which of the following is not true about awk arrays?

(a) they are not expanded automatically

(b) they are initialized to zero or an empty string

(c) index can be a string also

(d) they are not formally defined

I got this question in semester exam.

The above asked question is from Various Operations using Awk Command topic in chapter Awk – An Advanced Filter & Perl – The Master Manipulator of Unix

Answer 1

The correct option is (a) they are not expanded automatically

Explanation: awk supports the use of arrays but awk arrays differ from those arrays used in another programming language. awk arrays are expanded automatically.