Question

For running a UNIX command within awk, we’ve to use ____ function.

(a) length

(b) substr

(c) system

(d) split

I had been asked this question by my college professor while I was bunking the class.

Question is from Various Operations using Awk Command topic in section Awk – An Advanced Filter & Perl – The Master Manipulator of Unix

Answer 1

Correct option is (c) system

To explain I would say: For running a UNIX command within awk, we’ve to use system function. For example,