


      GGGGEEEETTTTTTTTYYYY((((1111))))                    ((((UUUUNNNNIIIIXXXX 5555....0000))))                   GGGGEEEETTTTTTTTYYYY((((1111))))



      NNNNAAAAMMMMEEEE
           getty  - set terminal characteristics

      SSSSYYYYNNNNTTTTAAAAXXXX
           ////eeeettttcccc////ggggeeeettttttttyyyy _l_i_n_e [_s_p_e_e_d]
           ////eeeettttcccc////ggggeeeettttttttyyyy ----cccc _f_i_l_e

      DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
           GGGGeeeettttttttyyyy is invoked by the User Monitor process during the
           system startup sequence.  (The sequence is Startup, User
           Monitor, Getty, Login, Shell.) GGGGeeeettttttttyyyy reads instructions from
           the file ggggeeeettttttttyyyyddddeeeeffffssss((((4444)))) on the line speed, accepts a user
           login name, determines the terminal characteristics from
           that name, and passes that name to the _l_o_g_i_n(_1) program.

           _L_i_n_e is a tty device name contained in ////ddddeeeevvvv which will
           become the control terminal.

           ////eeeettttcccc////ggggeeeettttttttyyyyddddeeeeffffssss tells _g_e_t_t_y what speed to initially run at,
           what the login message should look like, what the inital tty
           settings are.  ////eeeettttcccc////ggggeeeettttttttyyyyddddeeeeffffssss actually contains a list of
           specifications for _g_e_t_t_y to attempt, in order, until an
           appropriate specification is found.

           Normally, _g_e_t_t_y reads the first line of ggggeeeettttttttyyyyddddeeeeffffssss first,
           then reads successive lines until the information on a
           particular line is found to specify the correct speed. _S_p_e_e_d
           (optional) tells _g_e_t_t_y which line of the ////eeeettttcccc////ggggeeeettttttttyyyyddddeeeeffffssss file
           to start reading speed information from.

           By default, _g_e_t_t_y sets the _s_p_e_e_d of the interface to 9600
           baud, specifies that raw mode is to be used (awaken on every
           character), that echo is to be suppressed, either parity
           allowed, that the connection is local, that newline
           characters will be converted to "CR-LF", and that tab
           expansion will be performed on the standard output.

           _G_e_t_t_y types the login message before reading the user's name
           a character at a time. If a null character (or framing
           error) is received, it is assumed to be the result of the
           user pushing the ``break'' key. This will cause _g_e_t_t_y to
           attempt the next _s_p_e_e_d entry in the ////eeeettttcccc////ggggeeeettttttttyyyyddddeeeeffffssss file.

           The user's name is terminated by a new-line or carriage-
           return character.  The "CR" results in the system being set
           to treat "CR's" appropriately (see _i_o_c_t_l(_2)).

           The user's name is scanned to see if it contains any lower-
           case alphabetic characters; if not, and if the name is non-
           empty, the system is told to map any future upper-case
           characters into the corresponding lower-case characters.




      Page 1                                                   (9010-E)






      GGGGEEEETTTTTTTTYYYY((((1111))))                    ((((UUUUNNNNIIIIXXXX 5555....0000))))                   GGGGEEEETTTTTTTTYYYY((((1111))))



           Finally, _l_o_g_i_n is called with the user's name as an
           argument.  Additional arguments may be typed after the login
           name.  These are passed to _l_o_g_i_n which will place them in
           the environment (see _l_o_g_i_n (_1)).

           ----cccc _f_i_l_e is a check option, in which GGGGeeeettttttttyyyy scans _f_i_l_e instead
           of ////eeeettttcccc////ggggeeeettttttttyyyyddddeeeeffffssss and prints a diagnosis on the standard
           output.  In this case, it prints the flag values for correct
           entries, and reports other improper constructions.  See
           _i_o_c_t_l (_2) to interpret the values.  Note that some values
           are added to the flags automatically.

      FFFFIIIILLLLEEEESSSS
           /etc/gettydefs

      SSSSEEEEEEEE AAAALLLLSSSSOOOO
           ct(1), login(1), ioctl(2), gettydefs(4), inittab(4), tty(7).






































      Page 2                                                   (9010-E)



