Scripting 5250?

I'm curious what everyone knows about doing scripting with 5250.  Currently on 
the windows platform we use a program called netmanage 5250 that gives us a VBA 
scripting interface.  We need this scripting interface because a large portion 
of the scripts that are used cannot be converted to remote exec or similar 
environments.
   
  We just support the AS400s and fix problems and perform procedures and 
typically script them and then have it executed multiple times as needed.  My 
question is:
   
  Is there a good scripting option such as this for Linux?  Will linux5250 be 
able to handle something like this?  For instance I currently have a TCL script 
that does a analyzing a large number of stores and prepares results and passes 
information to TN5250 using a VBA script and then executes commands and 
interactive programs as was instructed by the TCL program.  I want to 
eventually port this all into a linux environment and get it off the 
windows/desktop environment.  I'm wondering if anyone has any sugggestions?