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I would like to build a command to return sysName and libName.

But, I would like the variables to be optional when using the command.

Examples:

Command name is GetEnvr



I would like the following to be functional:

GetEnvr &sysname &libname

Also

GetEnvr &libname



It appears that if I want to return a value, then the value MUST be used in every call of the command. Is it possible to make a return variable optional?



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