Question

The expression used with chmod command to change permissions in a relative manner contains ____ components.

(a) 5

(b) 2

(c) 4

(d) 3

I got this question by my college professor while I was bunking the class.

Query is from Changing File Ownership and Permissions in chapter Basic File Attributes of Unix

Answer 1

The correct option is (d) 3

For explanation: chmod command takes an expression as its arguments which comprises of some letters and symbols. The expression comprises three components:-

->    User category (user, group, others)

->    The operation to be performed (assign or remove a permission)

->    Type of permission (read, write, execute).