Can a Regex Return the Number of the Line where the Match is Found?

Question

In a text editor, I want to replace a given word with the number of the line number on which this word is found. Is this is possible with Regex?

Answer 1

Because you didn't specify which text editor, in vim it would be:

:%s/searched_word/\=printf('%-4d', line('.'))/g (read more)

But as somebody mentioned it's not a question for SO but rather Super User ;)