How do you establist an administrative command-line client on a mainframe?

[kmarsh]

How do you establish an adminstrative command-line client on a mainframe?
We have TSM running under Z/OS and currently use the adminstrative client command line on a workstation.

I would like to have it on the mainframe so that our scheduling software (ESP) could be used to send commands in batch mode.

Any information or examples would be greatly appreciated.