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The ENVIRON statement is used to temporarily set or change an environmental string value.


ENVIRON string_expression$

* Using an = : ENVIRON parameterID=setting
* Using a space: ENVIRON parameterID setting
  • If the parameter ID did not previously exist in the environmental string table, it is appended to the end of the table.
  • If a parameter ID did exist, it is deleted and the new value is appended to end of the list.
  • DOS discards any changes when your program ends so the program must set them when run!
  • WARNING: The amount of space in a environmental table is limited and may create memory errors.

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