Creating User in multiple server

Dear frnz,

I am facing a problem. Actually cant say its a problem. In my cluster I have to create multiple user with same user id and with same password in multiple server. Mean I will create user in one server same time it will update my another server. I can do it manullay by creating tar file and move it to another server. 

But I wanted to do it automatically. It needs an script. Please help if anyone do so.