The XPA messaging system provides seamless communication between many kinds
of Unix programs, including X programs and Tcl/Tk programs.
It also provides an easy way for users to communicate with these
XPA-enabled programs by executing XPA client commands in the shell or by
utilizing such commands in scripts. Because XPA works both at the programming
level and the shell level, it is a powerful tool for unifying any
analysis environment: users and programmers have great flexibility
in choosing the best level or levels at which to access XPA services,
and client access can be extended or modified easily at any time.
This package contains command-line utilities for managing XPA.