Command Line: create a link to folder and access files in this folder
You can do this with Symlinks:

ln -s /path/to/original/location /path/to/intended/shortcut


For example, if you want ~/Scripts to go to ~/Dropbox/Documents/Scripts you can do…

ln -s ~/Dropbox/Documents/Scripts ~/Scripts


Then open ~/Scripts/test.sh will open the file at ~/Dropbox/Documents/Scripts/test.sh.

To see the symlink you can run ls -laPGh ~/Scripts.

For example, I have my Mobile Documents folder symlinked as iCloud, so…

ls -lapGh ~/iCloud
lrwxr-xr-x@ 1 grgarside  staff    41B 12 Nov  2012 iCloud -&gt; /Users/grgarside/Library/Mobile Documents