duplicating and back up

how do you duplicate your entire project?

i would like to have a couple of versions incase i destroy something.

secondly how do you back up your data using postgresql?

weekly back ups

lastly how do you restore?

how do you duplicate your entire project?

i would like to have a couple of versions incase i destroy something.

Just stick in source control (svn, git etc...)

Fred

can you please elaborate.

can you please elaborate.

With source control all changes are tracked and preserve you can
maintain different branches, rollback to any specific revision etc...
If you don't know about it do yourself a favour and read up on it.

Fred