This variable says which user’s init files should be used by
nil if none.
"" stands for the user who
originally logged in. The value reflects command-line options such as
‘-q’ or ‘-u user’.
Lisp packages that load files of customizations, or any other sort of
user profile, should obey this variable in deciding where to find it.
They should load the profile of the user name found in this variable.
nil, meaning that the ‘-q’,
‘-Q’, or ‘-batch’ option was used, then Lisp packages should
not load any customization files or user profile.
This holds the email address of the user who is using Emacs.
user-login-name&optional uid ¶
This function returns the name under which the user is logged in.
It uses the environment variables
either is set. Otherwise, the value is based on the effective
UID, not the real UID.
If you specify uid (a number), the result is the user name that
corresponds to uid, or
nil if there is no such user.
This function returns the user name corresponding to Emacs’s real
UID. This ignores the effective UID, and the
user-full-name&optional uid ¶
This function returns the full name of the logged-in user—or the value
of the environment variable
NAME, if that is set.
If the Emacs process’s user-id does not correspond to any known user (and
NAME is not set), the result is
If uid is non-
nil, then it should be a number (a user-id)
or a string (a login name). Then
user-full-name returns the full
name corresponding to that user-id or login name. If you specify a
user-id or login name that isn’t defined, it returns
user-full-name are variables as well as functions. The functions
return the same values that the variables hold. These variables allow
you to fake out Emacs by telling the functions what to return. The
variables are also useful for constructing frame titles (see Frame Titles).
This function returns the real UID of the user.
This function returns the effective UID of the user.
This function returns the effective GID of the Emacs process.
This function returns the real GID of the Emacs process.
This function returns a list of strings, listing the user names on the
system. If Emacs cannot retrieve this information, the return value
is a list containing just the value of
This function returns a list of strings, listing the names of user
groups on the system. If Emacs cannot retrieve this information, the
return value is
This function returns the group name that corresponds to the numeric
group ID gid, or
nil if there is no such group.