scriptable user additions/password changes?

[Coda]

Hi.  I'd like to be able to incorporate username, uid, password, and
access assignments for coda users into some perl scripts that I currently
use to make administration on my system easy (your basic adduser, deluser,
password change kind of scripts)

what is the best way to add coda users, delete coda users, change
coda passwords, and modify the acls of volumes, by way of a perl script?

-- Jonathan