At the moment when one uses &&== env VARIABLE value it overrides and ignores VARIABLE from the environment.
Adding a new option, say &&== env-fallback VARIABLE value should provide a value only if VARIABLE doesn't exist (or is empty) in the initial environment.
At the moment when one uses
&&== env VARIABLE valueit overrides and ignoresVARIABLEfrom the environment.Adding a new option, say
&&== env-fallback VARIABLE valueshould provide a value only ifVARIABLEdoesn't exist (or is empty) in the initial environment.