Question

Which of the following is not a built-in variable used by awk?

(a) ES

(b) FILENAME

(c) argv

(d) argc

This question was posed to me during an interview.

My question is based upon Various Operations using Awk Command in section Awk – An Advanced Filter & Perl – The Master Manipulator of Unix

Answer 1

The correct option is (a) ES

The best explanation: argv is used for storing the list of arguments while argc stores the number of arguments in the command line.