So I have this text document with 89 lines. In this document the first column of every line is another language. My task is to count how many different starting letters are used in the document.I think I have to use some sort of sort command with uniq, but I am not sure how to do this.Snapshot from pastebin:Adyghe AdygeaAlbanian Albania        Aragonese AragonArmenian Armenia, Nagorno-KarabakhAromanian...Wymysorys PolandVro  Walloon WalloniaWelsh Wales
Count how many different starting letters are in languages names
sort;uniq