port
A path name relative to the /dev directory. If a "-" is
specified, agetty assumes that its standard input is already
connected to a tty port and that a connection to a remote
user has already been established.
Under System V, a "-" port argument should be preceded by a
"--".
baud_rate,...
A comma-separated list of one or more baud rates. Each time
agetty receives a BREAK character it advances through the
list, which is treated as if it were circular.
Baud rates should be specified in descending order, so that
the null character (Ctrl-@) can also be used for baud-rate
switching.
This argument is optional and unnecessary for virtual
terminals.
The default for serial terminals is keep the current baud
rate (see --keep-baud) and if unsuccessful then default to
'9600'.
term
The value to be used for the TERM environment variable. This
overrides whatever init(1) may have set, and is inherited by
login and the shell.
The default is 'vt100', or 'linux' for Linux on a virtual
terminal, or 'hurd' for GNU Hurd on a virtual terminal.
