GETENV(SEXP) (STRING)

 Function
  Access the value of an environment variable.

 Syntax
  GETENV(name)

   name = A string expression with the name of the environment variable to
          access.

 Return Type & Value
  STRING
  Returns the value of the environment variable specified by name.

 Remarks
  This function allows you to access the value of any environment
  variable set at the time that PCBoard was started.  So, for example, the
  PATH environment variable could be used to access data files somewhere
  on the path.

 Examples
  STRING path
  LET path = GETENV("PATH")
  TOKENIZE path
  LET path = "DATAFILE.TXT"
  WHILE (!EXIST(path) & (TOKCOUNT() > 0)) DO
    LET PATH = GETTOKEN()+"DATAFILE.TXT"
  ENDWHILE
  IF (EXIST(path)) PRINTLN "Found ",path,"!"