Bash globbing - autoexpand for a few specific cases?

Question

I understand that the wildcard * (by itself) will expand in such a way that it means "all non-hidden files in the current folder" with hidden files being those prefixed by a period.

There are two use cases that I would think are useful, but I don't know how to properly do:

1. How can you glob for... "All files in the current folder, including hidden files, but not including . or .."?

2. How can you glob for... "All hidden files (and only hidden files) in the current folder, but not including . or .."?

Answer 1

The Bash Cookbook suggests a solution to your 2nd requirement.

.[!.]*

as a way of specifying 'dot files' but avoiding . and ..

Of course, ls has the -A option, but that's not globbing.

Answer 2

To expand on paviums answer and answer the second part of your question, all files except . and .. could be specified like this:

{.[!.]*,*}

Depending on your exact use case it might be better to set the dotglob shell option, so that bash includes dotfiles in expansions of * by default:

$ shopt -s dotglob
$ echo *
.tst

Answer 3

To meet your first case:

echo {.,}[^.]*

or

echo {.,}[!.]*

Edit:

This one seems to get everything, but is shorter than ephemient's

echo {.*,}[^.]*