Question

We can perform sorting on secondary key also using sort command.

(a) True

(b) False

This question was addressed to me by my college professor while I was bunking the class.

This intriguing question originated from Sort Command topic in chapter Simple Filters of Unix

Answer 1

Correct answer is (a) True

To elaborate: We can sort on more than one fields i.e. we can provide a secondary key to sort. For example, if the primary key is the third field and the secondary key is the second field, then we have to specify for every -k option, where the sort ends. This is done in the following manner: