Question

Which of the following option is used for checking if the file is writable or not?

(a) -e

(b) -f

(c) -n

(d) -w

I got this question in unit test.

I'd like to ask this question from Using test and [ ] to Evaluate Expressions in portion Essential Shell Programming of Unix

Answer 1

The correct option is (d) -w

For explanation I would say: To check if the file exists and is writable we can use -w option. The syntax is -w filename.