How to run a program in a shell

[Wally Rodriguez]

I have created a new topic for this issue as I need help bad!!

I have an app (runs on OSX) that is basically a website generator.  
Looks at some folders and puts some html wrappers around files there  
after a user enters some info. Two of the items entered are a  
username and password. The prog then generates all the html and  
should generate an .htaccess and .htpasswd files.

What I need is to run htpasswd to generate the encrypted password  
for .htaccess

The problem is that REV won't let me run or even launch a shell. It's  
supposed to work, but it just doesn't.

If anybody knows how to run a shell prog and return it's result I  
would REALLY appreciate any help.

Thanks!!