Question

Which of the following characters specify the user and group category?

(a) ‘u’ and ‘g’

(b) ‘g’ and ‘o’

(c) ‘us’ and ‘gr’

(d) ‘u’ and ‘o’

The question was posed to me during an interview.

This interesting question is from Changing File Ownership and Permissions in division Basic File Attributes of Unix

Answer 1

Correct choice is (a) ‘u’ and ‘g’

To explain I would say: Each character specifies a particular category of users as follows:

‘u’ stands for a user,

‘g’ for ‘group’

‘o’ for ‘others’.