I am currently working on a programming project where I have my revisions of a Python module stored in dated directories, that is, I keep every day's revision separate, like a git repository on my laptop. For instance, today's hierarchy is .../workingdirs/12-28-11/fingerpuppet/, where fingerpuppet is my module's directory. How do I make a *permanent* symbolic or hard link in BASH to the most recent revision, such that it changes its target automatically to say, .../workingdirs/12-29-11/ tomorrow, without my having to change it manually? I've seen what appear to be such links on ftp servers, where there is a 'current' link to the most recent version of a file, but I don't know if that is automatically updated or done so manually.