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getenv

Definition: object x = getenv(string s)
Description: Return the value of a DOS environment variable.
If the variable is undefined return -1.
pwa/p2js: Not supported.
Comments: Because either a string or an atom (-1) might be returned, you should probably assign the result to a variable declared as object.

There is also a setenv() routine, as yet undocumented [DEV].
Example:
?getenv("ALLUSERSPROFILE")  -- "C:\ProgramData"
Implementation: See builtins\penv.e (an autoinclude) for details of the actual implementation.
See Also: command_line