

   GGeett EEnnvviirroonnmmeenntt VVaarriiaabblleess

        getenv(x)

   AArrgguummeennttss::

          x: a character vector

   DDeessccrriippttiioonn::

        `getenv' obtains the values of the environment vari-
        ables named by `x'.

   VVaalluuee::

        A vector of the same length as `x', with the variable
        names as its `names' attribute.  Each element holds the
        value of the environment variable named by the corre-
        sponding component of `x' (or `""' if no environment
        variable with that name was found).

   EExxaammpplleess::

        getenv(c("RHOME", "R_PAPERSIZE", "R_PRINTCMD"))

