Get player namer and realm macro commands?

Guides UI and Macro
1

title says it,how do i do it?

2 
/run local name, realm = UnitName("player"), GetRealmName() print(format("Name: %s, Realm: %s", name, realm))
3

thank you,now need to figure how to use that with whisper lol

4

See the Whisper example.