Question

Which one of the following is the correct syntax for grep command?

(a) grep options filename(s)

(b) grep options pattern

(c) grep pattern filename

(d) grep options pattern filename(s)

I had been asked this question in an international level competition.

The doubt is from grep command topic in division Filters using Regular Expressions of Unix

Answer 1

Correct option is (d) grep options pattern filename(s)

Explanation: grep command is used to search a file for a pattern and display both matching and non-matching lines. The syntax for using grep command is: