We have a log-on screen scraped from the mainframe 
screen where the user enters a username and password. 
      
     What we want to do is to get the the value on the 
username and compare it to the database we have, so upon 
entering the system we would customize the display to the 
specified user.

     What are the command for us to do these things ?

     Hoping for your immediate reply.  Thank you.