EDIT : actually, it is not an alias (see answers)
As you all know, in a shell, the dot-command (
.) is an alias to the source command.
But I wonder if there's a reason behind such a weird alias? Apparently, I don't use it so often that I would need such a short alias.
So, why a dot? And why for
source and not a more commonly used command such as
ls? Why even an alias? Is there a good reason behind that? Or is there a historical reason?
NOTE: I originally posted this question on Server Fault but I was suggested to post it here instead.