Shell file completion

[Alejandro Pulver]

Hello,

I was learning regular expressions, and I noticed that the shell has something similar (but it is different from regular expressions).

When I type 'echo *', it replaces '*' for all the files/dirs not starting with a '.' (dot).

I understand the '*' in regular expressions must be preceded by other thing to match it.

So it is behaving like the DOS wildcards.

Where is it documented?

Thanks and Best Regards,
Ale