Command for replicating a directory

Morning all,

Is there a command on AIX that can replicate/synchronise two directories? I'm after functionality similar to robocopy on Windows.

Scenario: I have a directory of Oracle forms for my production system and one for my dev system, these directories start off identical.

The forms in the dev system change throughout the lifecycle of a project, what I want to be able to do at the end of a project is run a script that makes the dev system look exactly like the prod system.

I don't want to simply wipe out the directory each time and copy the forms again as there's over 300mb. Robocopy looks at the file sizes and timestamps and if they're the same it leaves them in place and just copies the files that are different. More like a synchronise than a copy.

Thanks for your help.
Rich

Have a look into rsync. It is usually on the Linux Toolbox CDs or download it at IBM.