ttytype.1 (2010 09)

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ttytype(1) ttytype(1)

NAME

ttytype - terminal identiﬁcation program

SYNOPSIS

ttytype [-apsv][-t

type ]

DESCRIPTION

ttytype automatically identiﬁes the current terminal type by sending an identiﬁcation request

sequence to the terminal. This method works for local, modem, and remote terminal connections, as well

as for the hpterm and xterm terminal emulators.

Once the terminal has been identiﬁed,

ttytype prints the terminal’s type to the standard output (see

terminfo (4)). This string is usually used as the value for the

TERM environment variable.

ttytype is unable to determine the correct terminal type, it prompts the user for the correct terminal

identiﬁcation string.

Options

ttytype recognizes the following options:

-a Causes ttytype to return an ID of "unknown" instead of prompting for the terminal

type if auto-identiﬁcation fails. If this option is not present, ttytype interactively

prompts the user for the terminal type if it is unable to determine the correct type

automatically.

-p Causes ttytype to prompt for the terminal type before it sends the terminal

identiﬁcation request sequence. If the user responds with only a carriage return,

ttytype proceeds with the automatic terminal identiﬁcation process. Any other

response is taken as the correct terminal type. Note that the LINES and COLUMNS vari-

ables are not set if the user manually enters a terminal type.

The

-p option is normally used only for terminals that do not behave well when

presented with ttytype’s terminal identiﬁcation request sequence. It gives the user a

chance to respond with the correct terminal type before any escape sequences are sent

that could have an adverse effect on the terminal.

The

-a option can be used in conjunction with the -p option. The -a

option only inhi-

bits interactive prompting after

ttytype has failed to identify the terminal by other

means.

-s Tells ttytype to print a series of shell commands to set the

TERM, LINES, and

COLUMNS environment variables to appropriate values. In addition, the variable ERASE

is set to the two-character sequence representing the appropriate erase character for the

terminal (DEL for ANSI terminals, backspace for all others). This two-character

sequence can then be used as an argument to stty or tset (see stty (1) and tset (1)).

The

SHELL environment variable is consulted to see which shell syntax to use for setting

the environment variables. This output is normally used with a command of the form:

eval ‘ttytype -s‘

-t type ttytype normally attempts identiﬁcation of Wyse, ANSI and HP terminals. The -t

type argument can be used to restrict the inquiry to that required for terminals of the

speciﬁed type. The accepted types are ansi, hp, and wyse. Multiple -t options can be

speciﬁed.

-v Enable verbose messages to standard error.

On terminals where the response is slow, two additional options are provided:

-Rxxx Causes ttytype to wait up to xxx milliseconds to get the response from the terminal.

-Cyyy Causes ttytype to wait up to yyy milliseconds between two successive attempts to read

the response from the terminal.

Notes

Use of the

-s option is highly recommended because many terminals support variable-size displays.

This option provides the only means for automatically conﬁguring the user environment in such a manner

that applications can handle these terminals correctly. Note that LINES and COLUMNS are not set if the

-p option is used and the user manually enters a terminal type.

HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1

Summary of content (2 pages)

PAGE 1
ttytype(1) ttytype(1) NAME ttytype - terminal identification program SYNOPSIS ttytype [-apsv] [-t type ] DESCRIPTION ttytype automatically identifies the current terminal type by sending an identification request sequence to the terminal. This method works for local, modem, and remote terminal connections, as well as for the hpterm and xterm terminal emulators. Once the terminal has been identified, ttytype prints the terminal’s type to the standard output (see terminfo (4)).
PAGE 2
ttytype(1) ttytype(1) The following steps are performed in the order indicated when identifying a terminal: 1. ttytype tries the Wyse 30/50/60 id request sequence. 2. ttytype tries the standard ANSI ID request sequence. If a response is received, it is converted to a string according to an internal table. 3. ttytype tries the HP id request sequence. 4. If none of the above steps succeed, ttytype prompts interactively for the correct terminal type unless the -a option has been given.