emacs-env-vars.txt

`EMACSDATA'  ("/usr/local/share/emacs/22.0.50/etc/")
     Directory for the architecture-independent files that come with
     Emacs.  This is used to initialize the Lisp variable
     `data-directory'.

`EMACSDOC' ("/usr2/cvs/emacs/etc/")
     Directory for the documentation string file, `DOC-EMACSVERSION'.
     This is used to initialize the Lisp variable `doc-directory'.

`EMACSLOADPATH'
     A colon-separated list of directories(1) to search for Emacs Lisp
     files--used to initialize `load-path'.

`PATH'
     A colon-separated list of directories in which executables reside.
     This is used to initialize the Emacs Lisp variable `exec-path'.
`EMACSPATH'
     A colon-separated list of directories to search for executable
     files--used to initialize `exec-path'.
("/bin" "/usr/bin" "/usr/bin/X11" "/usr/local/bin" "/usr/bin" "/usr/X11R6/bin" "/usr/local/acl/acl62/" "/home/peter/bin" "/usr/local/acl/acl62/" "/usr/local/acl/acl62/" "/home/peter/bin" "/usr/local/acl/acl62/" "/usr/local/acl/acl62/" "/usr2/cvs/emacs/lib-src" "/usr/local/libexec/emacs/22.0.50/i686-pc-linux-gnu")

`PWD'
     If set, this should be the default directory when Emacs was
     started.

`SHELL'
     The name of an interpreter used to parse and execute programs run
     from inside Emacs.