twoftpd-switch - TwoFTPD back-end switcher.

twoftpd-switch  examines the value of $SHELL to determine which back-end to execute.  If $SHELL_WRITEONLY
       is set and matches the value of $SHELL, twoftpd-drop is executed.  If $SHELL_READONLY is set and  matches
       the value of $SHELL, twoftpd-anon is executed.  Otherwise, twoftpd-xfer is executed.

       twoftpd-switch - TwoFTPD back-end switcher.

twoftpd-switch prefixes the commands with the path in which the programs were installed.

twoftpd-xfer(1)

                                                                                               twoftpd-switch(1)

twoftpd-switch