The main purpose of `cat` is not to print a single file to stdout but to conCATenate files to stdout [0].
Of course if I have a single file it's printed alone.
Just here to say that `cat` is not a synonym of `print`, but nowadays it's "cat FILE" everywhere. Even in APIs... [1] (Compact and aligned text? XD)
[0] https://www.man7.org/linux/man-pages/man1/cat.1.html [1] https://www.elastic.co/guide/en/elasticsearch/reference/curr...