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screen
's `screen' command (see section 6.2 Screen Command).
The first parameter to the `screen' command defines which
type of window is created. The different window types are all
special cases of the normal type. They have been added in order
to allow screen
to be used efficiently as a console
with 100 or more windows.
<baud_rate>
cs8 or cs7
ixon or -ixon
ixoff or -ixoff
istrip or -istrip
You may want to specify as many of these options as applicable. Unspecified options cause the terminal driver to make up the parameter values of the connection. These values are system dependant and may be in defaults or values saved from a previous connection.
For tty windows, the info
command shows some of the modem
control lines in the status line.
These may include `RTS', `CTS', `DTR', `CD' and
more. This depends rather on on the available ioctl()
's and system
header files than on the physical capabilities of the serial board.
The name of a logical low (inactive) signal is preceded by an
exclamation mark (`!'), otherwise the signal is logical high (active).
Unsupported but shown signals are usually shown low.
When the CLOCAL
status bit is true, the whole set of modem signals is
placed inside curly braces (`{' and `}').
When the CRTSCTS
or TIOCSOFTCAR
bit is true, the signals
`CTS' or `CD' are shown in parenthesis, respectively.
For tty windows, the command break
causes the Data transmission
line (TxD) to go low for a specified period of time. This is expected
to be interpreted as break signal on the other side.
No data is sent and no modem control line is changed when a
break
is issued.
//telnet
, the second parameter is
expected to be a host name, and an optional third parameter may specify
a TCP port number (default decimal 23). Screen will connect to a
server listening on the remote host and use the telnet protocol to
communicate with that server.
For telnet windows, the command info
shows details about
the connection in square brackets (`[' and `]') at the end of
the status line.
b
e
c
t
screen
unless instructed otherwise (see also the
command `term').
w
f
For telnet windows, the command break
sends the telnet code
IAC BREAK
(decimal 243) to the remote host.
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