NAME

tset − provide information to set terminal modes

SYNOPSIS

tset [ options ] [ type ]

DESCRIPTION

tset allows the user to set a terminal’s ERASE and KILL characters, and define the terminal’s type and capabilities by creating values for the TERM environment variable.  tset initializes or resets the terminal with tput(1).  If a type is given with the −s option, tset creates information for a terminal of the specified type.  The type may be any type given in the terminfo database.  If the type is not specified with the −s option, tset creates information for a terminal of the type defined by the value of the environment variable, TERM, unless the −h or −m option is given.  If the TERM variable is defined, tset uses the terminfo database entry.  If these options are used, tset searches the /etc/ttytype file for the terminal type corresponding to the current serial port; it then creates information for a terminal based on this type.  If the serial port is not found in /etc/ttytype, the terminal type is set to unknown. 

tset displays the created information at the standard output.  The information is in a form that can be used to set the current environment variables.  The exact form depends on the login shell from which tset was invoked.  The following examples illustrate how to use this information to change the variables. 

There are the following options:

−e[c] Sets the ERASE character to c on all terminals.  The default setting is the BACKSPACE, or CTRL-H. 

−E[c]
Identical to the −e command except that it only operates on terminals that can BACKSPACE. 

−k[c] Sets the KILL character to c, defaulting to CTRL-U. 

− Prints the terminal type on the standard output. 

−s Outputs the “setenv” commands [for csh(1)], or “export” and assignment commands [for sh(1)]. The type of commands are determined by the user’s login shell.

−h Forces tset to search /etc/ttytype for information and to overlook the environment variable, TERM. 

−S Only outputs the strings to be placed in the environment variables, without the shell commands printed for -S. 

−r Prints the terminal type on the diagnostic output. 

−Q Suppresses the printing of the “Erase set to” and “Kill set to” messages. 

−I Suppresses printing of the terminal initialization strings, e.g., spawns tput reset instead of tput init. 

−m[ident][test baudrate]:type
Allows a user to specify how a given serial port is is to be mapped to an actual terminal type. The option applies to any serial port in /etc/ttytype whose type is indeterminate (e.g., dialup, plugboard, etc.). The type specifies the terminal type to be used, and ident identifies the name of the indeterminate type to be matched.  If no ident is given, all indeterminate types are matched.  The test baudrate defines a test to be performed on the serial port before the type is assigned.  The baudrate must be as defined in stty(1).  The test may be any combination of:  >, =, <, @, and !.  If the type begins with a question mark, the user is asked if he really wants that type.  A null response means to use that type; otherwise, another type can be entered which will be used instead.  The question mark must be escaped to prevent filename expansion by the shell.  If more than one −m option is given, the first correct mapping prevails. 

tset is most useful when included in the .login [for csh(1)] or .profile [for sh(1)] file executed automatically at login, with −m mapping used to specify the terminal type you most frequently dial in on. 

EXAMPLES

tset gt42

tset −mdialup\>300:adm3a −mdialup:dw2 −Qr −e#

tset −m dial:ti733 −m plug:\?hp2621 −m unknown:\? −e −k^U

To use the information created by the −s option for the Bourne shell, (sh), type the following:

eval ‘tset −s ....‘

To use the information created for csh, use:

set noglob
eval ‘tset −s ....‘

FILES

/etc/ttytypePort name to terminal type map database
/usr/lib/terminfo/*Terminal capability database

SEE ALSO

stty(1), termio(7), tput(1), tty(1), terminfo(4). 

NOTES

This utility was developed at the University of California at Berkeley and is used with permission. 

ADDED VALUE

This entry, supplied by SunSoft, Inc., contains enhancements to UNIX System V. 

\*U  —  Version 1.0