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UNIX in a Nutshell: System V Edition

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UNIX Commands
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/usr/ucb/tset [options] [type]

Set terminal modes. Without arguments, the terminal is reinitialized according to the TERM environment variable. tset is typically used in startup scripts (.profile or .login). type is the terminal type; if preceded by a ?, tset prompts the user to enter a different type, if needed. Press RETURN to use the default value, type. See also reset.



Print terminal name on standard output; useful for passing this value to TERM.


Set erase character to c; default is ^H (backspace).


Set interrupt character to c (default is ^C).


Do not output terminal initialization setting.

-k c

Set line-kill character to c (default is ^U).


Declare terminal specifications. port is the port type (usually dialup or plugboard). tty is the terminal type; it can be preceded by ? as above. baudrate checks the port speed and can be preceded by any of these characters:


Port must be greater than baudrate.


Port must be less than baudrate.


Port must transmit at baudrate.


Negate a subsequent >, <, or @ character.


Initialize new tty driver modes. Useless because of redundancy with stty new.


Do not print "Erase set to" and "Kill set to" messages.


Report the terminal type.


Return the values of TERM assignments to shell environment. This is a commonly done via eval \`tset -s\` (in the C shell, you would surround this with the commands set noglob and unset noglob).


Set TERM to wy50:

eval `tset -s wy50`

Prompt user for terminal type (default will be vt100):

eval `tset -Qs -m '?vt100'`

Similar to above, but the baudrate must exceed 1200:

eval `tset -Qs -m '>1200:?xterm'`

Set terminal via modem; the ?$TERM checks that the terminal type is set (C shell only):

eval `tset -s -m dialup:'?vt100' "?$TERM"`

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