How can I find $ with regular expression?

[Pierluigi Vitiello]

I have files with $ but Notepad++ is unable to find $.

[PeterJones]

@Pierluigi-Vitiello ,

Regular expressions have a concept called “escaping”, where you put a \ before the special character, and it turns it into a literal character. So if you want to search for a literal dollar sign $ rather than the end-of-line that the symbol means in a regular expression, search for \$ instead of $.

see the docs at https://npp-user-manual.org/docs/searching/#single-character-matches for more on the escaping sequence.