MPE/iX has a user interface that includes a
command language, on-line HELP facility, user-defined
commands (UDCs), and command files.
The MPE/iX command language is processed by the
Command Interpreter.
It contains all necessary commands to direct and
control the system.
You can enter identical MPE/iX commands during a session
or through a job; MPE/iX has no separate control
language for jobs.
You can also issue MPE/iX commands in a command file.
Actions MPE/iX commands can perform include:
Initiate and terminate jobs and sessions.
Run system programs and utilities
Compile, link, load, run, and debug programs.
Create, maintain, and delete files.
Display file information.
Display job, session, or device status
Establish communication with local and remote computers.
Control and manage system resources.
If the command interpreter (CI) detects an error in command syntax
in interactive mode (during a session), it provides a
descriptive error message specifying the erroneous parameter and
prompts you to correctly reenter the command.
If it detects a syntax error while running, it lists the error on
the output device and halts the job.
You can use the command language
to create batch files (also called stream jobs)
that contain control statements and variables.
Execution of the commands in the file can be altered
at execution time by using these control statements.
