SU(8)                                                       SU(8)

     NAME
          su - substitute user id temporarily

     SYNOPSIS
          /etc/su [ user ]

     DESCRIPTION
          Su demands the password for the login name user, and if it
          is given, changes to that userid and invokes the Shell sh(1)
          without changing the current directory.  The user environ-
          ment is unchanged except for HOME and SHELL, which are taken
          from the password file for the user being substituted (see
          environ(5)). The new userid stays in force until the Shell
          exits.

          If no user is specified, `root' is assumed.  To remind the
          super-user of his responsibilities, the Shell substitutes
          `#' for its usual prompt.

     SEE ALSO
          sh(1)