logname(1)                                                       logname(1)

NAME
     logname - display login name

SYNOPSIS
     logname

DESCRIPTION
     logname writes the user's login name to standard output. The login
     name is the string that will be returned by the getlogin(3C) function.
     If getlogin(3C) fails, a further attempt is made with the cuserid(3S)
     function and the following message is displayed on standard error:
     getlogin() call failed, trying cuserid().

   Interaction with su

     If you have logged in under a login name name, and then change to
     another login name with su and enter logname under this new identity,
     logname outputs the login name name in the same way as the who or
     who am i command. id, on the other hand, outputs the current login
     name according to su.

EXAMPLES
     Example 1

     You log in under the login name peter and then display this login
     name:

     $ logname
     peter

     Example 2

     You now switch to the login name david with su and then display the
     login name with logname, who am i and id:

     $ su david

     $ logname
     peter

     $ who am i
     peter       tty004       Mar  7  18:59

     $ id
     uid=1097(david) gid=20(user)

NOTES
     utmp logging is made available with some X11 emulations. If the user
     waives this option, logname cannot return a correct value (error mes-
     sage: "getlogin() call failed,trying cuserid()").





Page 1                       Reliant UNIX 5.44                Printed 11/98

logname(1)                                                       logname(1)

FILES
     /etc/profile
          File that is evaluated by each login shell. It is used for set-
          ting a shell environment, depending on the contents of the LOG-
          NAME (login name of the user) environment variable passed by
          login. This file is created by the system administrator.

SEE ALSO
     env(1), id(1), login(1), su(1), who(1), getlogin(3C), cuserid(3S),
     environ(5).












































Page 2                       Reliant UNIX 5.44                Printed 11/98