Issuing system commands

During your z/OS® Debugger session, you can still access your base operating system using the SYSTEM command. The string following the SYSTEM command is passed on to your operating system. You can communicate with TSO in a TSO environment. For example, if you want to see a TSO catalog listing while in a debugging session, enter SYSTEM LISTC;.

When you are entering system commands, you must comply with the following:
  • A command is required after the SYSTEM keyword. Do not enter any required parameters. z/OS Debugger prompts you.
  • If you are debugging in batch and need system services, you can include commands and their requisite parameters in a CLIST and substitute the CLIST name in place of the command.
  • If you want to enter several TSO commands, you can include them in a USE file, a procedure, or other commands list. Or you can enter: 
    SYSTEM ISPF;
    This starts ISPF and displays an ISPF panel on your host emulator screen that you can use to issue commands.

For CICS® only: The SYSTEM command is not supported.

TSO is a synonym for the SYSTEM command. Truncation of the TSO command is not allowed.