z/VM EXECIO EMSG syntax, including optional operands
"EXECIO num_rec EMSG
( output_options1
ST msgtext "
Output_options applicable to EXECIO EMSG
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A closing parenthesis ) is optional and hence often omitted.
The Legac-e Information Site
Legac-e - REXX : Using EXECIOOpposite is the syntax of the EXECIO command used to issue a message.
Note that the values after the open parenthesis ( are all optional and should be selected as required.
The sample REXX routine illustrates the various ways that EXECIO EMSG can be coded.
"EXECIO num_rec EMSG
( output_options1
ST msgtext "
Output_options applicable to EXECIO EMSG
  |
  |
A closing parenthesis ) is optional and hence often omitted.
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