The value of the LC_CTYPE category is
matched against entries in locale-language-names,
locale-charset-language-names, and
locale-preferred-coding-systems, to select a default language
environment and coding system. See Language Environments.
The user's login name. See also USER.
The name of the user's system mail inbox.
Name of file containing mail aliases. (The default is ~/.mailrc.)
Name of setup file for the mh system. (The default is ~/.mh_profile.)
The real-world name of the user.
The name of the news server. Used by the mh and Gnus packages.
The name of the organization to which you belong. Used for setting the 'Organization:' header in your posts from the Gnus package.
A colon-separated list of directories in which executables reside. This is used to initialize the Emacs Lisp variable exec-path.
If set, this should be the default directory when Emacs was started.
If set, this specifies an initial value for the variable mail-default-reply-to. See Mail Headers.
The name of a directory in which news articles are saved by default. Used by the Gnus package.
The name of an interpreter used to parse and execute programs run from inside Emacs.
The type of the terminal that Emacs is using. This variable must be set unless Emacs is run in batch mode. On MS-DOS, it defaults to internal, which specifies a built-in terminal emulation that handles the machine's own display. If the value of TERM indicates that Emacs runs in non-windowed mode from xterm or a similar terminal emulator, the background mode defaults to light, and Emacs will choose colors that are appropriate for a light background.
The name of the termcap library file describing how to program the terminal specified by the TERM variable. This defaults to /etc/termcap.
Used by the Emerge package as a prefix for temporary files.
This specifies the current time zone and possibly also daylight saving time information. On MS-DOS, if TZ is not set in the environment when Emacs starts, Emacs defines a default value as appropriate for the country code returned by DOS. On MS-Windows, Emacs does not use TZ at all.
The user's login name. See also LOGNAME. On

