From an Emacs Shell ...
=======================

  You can give formatting and printing commands from a shell within GNU
Emacs.  To create a shell within Emacs, type `M-x shell'.  In this
shell, you can format and print the document.  *Note Format and Print
Hardcopy: Format/Print Hardcopy, for details.

  You can switch to and from the shell buffer while `tex' is running
and do other editing.  If you are formatting a long document on a slow
machine, this can be very convenient.

  You can also use `texi2dvi' from an Emacs shell.  For example, here
is how to use `texi2dvi' to format and print `Using and Porting GNU CC'
from a shell within Emacs (where `%' is the shell prompt):

     % texi2dvi gcc.texinfo
     % lpr -d gcc.dvi

  See Texinfo Mode Printing, for more information about formatting
and printing in Texinfo mode.