Question

Which of the following is a built-in function for awk?

(a) length

(b) index

(c) size

(d) length and index

This question was posed to me in an online quiz.

I'm obligated to ask this question of Various Operations using Awk Command in section Awk – An Advanced Filter & Perl – The Master Manipulator of Unix

Answer 1

Right answer is (a) length

Explanation: awk has several built-in functions which are used for performing arithmetic as well as string operations. The length function is used for determining the length of its argument while the index is used for determining the position of a string str1 within another string str2.