Question

To check if the file exists and is executable we have to use ___ option with test.

(a) -e

(b) -f

(c) -x

(d) -w

This question was posed to me during an interview.

The question is from Using test and [ ] to Evaluate Expressions in section Essential Shell Programming of Unix

Answer 1

The correct answer is (c) -x

Easiest explanation: If we want to check whether the file exists and is executable we have to use the -x option. The syntax is -x filename.