DSNE118E invalid-command NOT VALID COMMAND

Explanation
The user entered an invalid command. A typing error may be responsible.
You may be trying to run a command processor that is either not available
on your system or that is not part of your current LNKLST or STEPLIB concatenation.

System action
The TSO attachment facility is ready for more input.

User response
Either correct the spelling error, or rearrange your library concatenation
so that you can access the required command processor. Resubmit the command.