There is a website called dotfiles where backup your local user UNIX/Linux/BSD configuration files. The dotfiles name comes from the way config files are stored for local users. They generally start with a dot to make them hidden files.
To backup and share these files
- Goto: http://dotfiles.org/
- Create a user name
- Click add file
- The first field is the files name, the second is the files content, and the last is the description.
- As your config files change you can edit them accordingly.