You just need to escape or double quote the special characters on the command line. In my experience, Bash does this for you automatically with tab completion, although there are some minor glitches.

The only characters you absolutely cannot use in a file name are slash (because it's used to separate directories) and ASCII null (because it's used internally to terminate strings).

Here's a quick attempt at batch rename.

This might be even a little bit too conservative in what characters it will accept in a file name, but at least it's a start.