.TH GETTY 8 .SH NAMEgetty  \- set typewriter mode.SH SYNOPSIS.B /etc/getty[ char ].SH DESCRIPTION.I Gettyis invokedby.IR  init (8)immediately after a typewriter is openedfollowing a dial-up.It reads the user's login name and calls.IR login (1)with the name as argument.While reading the name.I gettyattempts to adapt the system to the speed and type of terminalbeing used..PP.I Initcalls.I gettywith a single character argument taken fromthe.IR ttys (5)file entry for the terminal line.This argument determines a sequence of line speeds through which.I gettycycles, and also the `login:' greeting message,which can contain character sequences to put various kinds ofterminals in useful states..PPThe user's name is terminated by a new-line orcarriage-return character.In the second case CRMOD mode is set(see.IR  ioctl (2))..PPThe name is scanned to see ifit contains any lower-case alphabetic characters; if not,and if the name is nonempty, thesystem is told to map any future upper-case charactersinto the corresponding lower-case characters..PPIf the terminal's `break' key is depressed,.I gettycycles to the next speed appropriate to the type of lineand prints the greeting message again..PPFinally, login is called with the user's name as argument..PPThe following arguments from the.I ttysfile are understood..TP0Cycles through 300-1200-150-110 baud.Useful as a default for dialup lines accessed by a varietyof terminals..TP\-Intended for an on-line Teletype model 33, for examplean operator's console..TP1Optimized for a 150-baud Teletype model 37..TP2Intended for an on-line 9600-baud terminal, for examplethe Textronix 4104..TP3Starts at 1200 baud, cycles to 300 and back.Useful with 212 datasets where most terminalsrun at 1200 speed..TP5Same as `3' but starts at 300..TP4Useful for on-line console DECwriter (LA36)..SH "SEE ALSO"init(8), login(1), ioctl(2), ttys(5)