Data variables w , x and y before executing mypgm.cmd . When the program ends, the REXX variables a , b , and d are retrieved from the REXX program, and their values are assigned to the Net. Data variables w , x , and z . A system call to execute a Perl script Net. This method does not allow Net.
Different languages reference the variables differently.
If a variable name corresponding to an output parameter is written this way, the new value replaces the current value. If a variable name is written that does not correspond to an output parameter, it is ignored. Data performs variable substitution on the executable statements. In this example, there are no Net. Data variables in the executable statements, so no variable substitution is performed.