Re: pet hate: different versions of same app

I thought there was some kind of file system standard which says to put 
such stuff under /opt, so in your case you would get something like:
/opt/postgres5
/opt/postgres6
/opt/postgres7
etc.
Then its datafiles are under /var/opt/postgresX

Then again, that is not out of the box behaviour, you'll have to 
recompile it.

> Most of the commercial Unices of my acquaintance have addressed this in
> some way. I'm curious why Linux hasn't...