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<!-- Manpage converted by man2html 3.0.1 -->
+<STRONG><A HREF="tset.1.html">tset(1)</A></STRONG> <STRONG><A HREF="tset.1.html">tset(1)</A></STRONG>
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</PRE>
<H2>NAME</H2><PRE>
4. The default terminal type, ``unknown''.
If the terminal type was not specified on the command-
- line, the -m option mappings are then applied (see below
+ line, the <STRONG>-m</STRONG> option mappings are then applied (see below
for more information). Then, if the terminal type begins
with a question mark (``?''), the user is prompted for
confirmation of the terminal type. An empty response con-
The options are as follows:
- -q The terminal type is displayed to the standard out-
+ <STRONG>-q</STRONG> The terminal type is displayed to the standard out-
put, and the terminal is not initialized in any way.
The option `-' by itself is equivalent but archaic.
- -e Set the erase character to <EM>ch</EM>.
+ <STRONG>-e</STRONG> Set the erase character to <EM>ch</EM>.
- -I Do not send the terminal or tab initialization
+ <STRONG>-I</STRONG> Do not send the terminal or tab initialization
strings to the terminal.
- -Q Don't display any values for the erase, interrupt and
+ <STRONG>-Q</STRONG> Don't display any values for the erase, interrupt and
line kill characters.
<STRONG>-V</STRONG> reports the version of ncurses which was used in this
program, and exits.
- -i Set the interrupt character to <EM>ch</EM>.
+ <STRONG>-i</STRONG> Set the interrupt character to <EM>ch</EM>.
- -k Set the line kill character to <EM>ch</EM>.
+ <STRONG>-k</STRONG> Set the line kill character to <EM>ch</EM>.
- -m Specify a mapping from a port type to a terminal.
+ <STRONG>-m</STRONG> Specify a mapping from a port type to a terminal.
See below for more information.
- -r Print the terminal type to the standard error output.
+ <STRONG>-r</STRONG> Print the terminal type to the standard error output.
- -s Print the sequence of shell commands to initialize
+ <STRONG>-s</STRONG> Print the sequence of shell commands to initialize
the environment variable <STRONG>TERM</STRONG> to the standard output.
See the section below on setting the environment for
details.
- The arguments for the -e, -i, and -k options may either be
+ The arguments for the <STRONG>-e</STRONG>, <STRONG>-i</STRONG>, and <STRONG>-k</STRONG> options may either be
entered as actual characters or by using the `hat' nota-
tion, i.e. control-h may be specified as ``^H'' or ``^h''.
<H2>SETTING THE ENVIRONMENT</H2><PRE>
It is often desirable to enter the terminal type and
information about the terminal's capabilities into the
- shell's environment. This is done using the -s option.
+ shell's environment. This is done using the <STRONG>-s</STRONG> option.
- When the -s option is specified, the commands to enter the
+ When the <STRONG>-s</STRONG> option is specified, the commands to enter the
information into the shell's environment are written to
the standard output. If the <STRONG>SHELL</STRONG> environmental variable
ends in ``csh'', the commands are for <STRONG>csh</STRONG>, otherwise, they
often desirable to provide information about the type of
terminal used on such ports.
- The purpose of the -m option is to map from some set of
+ The purpose of the <STRONG>-m</STRONG> option is to map from some set of
conditions to a terminal type, that is, to tell <STRONG>tset</STRONG> ``If
I'm on this port at a particular speed, guess that I'm on
that kind of terminal''.
- The argument to the -m option consists of an optional port
- type, an optional operator, an optional baud rate specifi-
- cation, an optional colon (``:'') character and a terminal
- type. The port type is a string (delimited by either the
- operator or the colon character). The operator may be any
- combination of ``>'', ``<'', ``@'', and ``!''; ``>'' means
- greater than, ``<'' means less than, ``@'' means equal to
- and ``!'' inverts the sense of the test. The baud rate is
- specified as a number and is compared with the speed of
- the standard error output (which should be the control
- terminal). The terminal type is a string.
+ The argument to the <STRONG>-m</STRONG> option consists of an optional port
+ type, an optional operator, an optional baud rate
+ specification, an optional colon (``:'') character and a
+ terminal type. The port type is a string (delimited by
+ either the operator or the colon character). The operator
+ may be any combination of ``>'', ``<'', ``@'', and ``!'';
+ ``>'' means greater than, ``<'' means less than, ``@''
+ means equal to and ``!'' inverts the sense of the test.
+ The baud rate is specified as a number and is compared
+ with the speed of the standard error output (which should
+ be the control terminal). The terminal type is a string.
If the terminal type is not specified on the command line,
- the -m mappings are applied to the terminal type. If the
- port type and baud rate match the mapping, the terminal
- type specified in the mapping replaces the current type.
- If more than one mapping is specified, the first applica-
+ the <STRONG>-m</STRONG> mappings are applied to the terminal type. If the
+ port type and baud rate match the mapping, the terminal
+ type specified in the mapping replaces the current type.
+ If more than one mapping is specified, the first applica-
ble mapping is used.
- For example, consider the following mapping:
+ For example, consider the following mapping:
<STRONG>dialup>9600:vt100</STRONG>. The port type is dialup , the operator
- is >, the baud rate specification is 9600, and the termi-
+ is >, the baud rate specification is 9600, and the termi-
nal type is vt100. The result of this mapping is to spec-
ify that if the terminal type is <STRONG>dialup</STRONG>, and the baud rate
- is greater than 9600 baud, a terminal type of <STRONG>vt100</STRONG> will
+ is greater than 9600 baud, a terminal type of <STRONG>vt100</STRONG> will
be used.
If no baud rate is specified, the terminal type will match
any baud rate. If no port type is specified, the terminal
- type will match any port type. For example, <STRONG>-m</STRONG>
+ type will match any port type. For example, <STRONG>-m</STRONG>
<STRONG>dialup:vt100</STRONG> <STRONG>-m</STRONG> <STRONG>:?xterm</STRONG> will cause any dialup port,
regardless of baud rate, to match the terminal type vt100,
- and any non-dialup port type to match the terminal type
- ?xterm. Note, because of the leading question mark, the
- user will be queried on a default port as to whether they
+ and any non-dialup port type to match the terminal type
+ ?xterm. Note, because of the leading question mark, the
+ user will be queried on a default port as to whether they
are actually using an xterm terminal.
- No whitespace characters are permitted in the -m option
- argument. Also, to avoid problems with meta-characters,
- it is suggested that the entire -m option argument be
- placed within single quote characters, and that <STRONG>csh</STRONG> users
- insert a backslash character (``\'') before any exclama-
+ No whitespace characters are permitted in the <STRONG>-m</STRONG> option
+ argument. Also, to avoid problems with meta-characters,
+ it is suggested that the entire <STRONG>-m</STRONG> option argument be
+ placed within single quote characters, and that <STRONG>csh</STRONG> users
+ insert a backslash character (``\'') before any exclama-
tion marks (``!'').
</PRE>
<H2>HISTORY</H2><PRE>
- The <STRONG>tset</STRONG> command appeared in BSD 3.0. The <STRONG>ncurses</STRONG> imple-
- mentation was lightly adapted from the 4.4BSD sources for
+ The <STRONG>tset</STRONG> command appeared in BSD 3.0. The <STRONG>ncurses</STRONG> imple-
+ mentation was lightly adapted from the 4.4BSD sources for
a terminfo environment by Eric S. Raymond <esr@snark.thyr-
sus.com>.
</PRE>
<H2>COMPATIBILITY</H2><PRE>
- The <STRONG>tset</STRONG> utility has been provided for backward-compati-
- bility with BSD environments (under most modern UNIXes,
- <STRONG>/etc/inittab</STRONG> and <STRONG><A HREF="getty.1.html">getty(1)</A></STRONG> can set <STRONG>TERM</STRONG> appropriately for
- each dial-up line; this obviates what was <STRONG>tset</STRONG>'s most
- important use). This implementation behaves like 4.4BSD
+ The <STRONG>tset</STRONG> utility has been provided for backward-compati-
+ bility with BSD environments (under most modern UNIXes,
+ <STRONG>/etc/inittab</STRONG> and <STRONG><A HREF="getty.1.html">getty(1)</A></STRONG> can set <STRONG>TERM</STRONG> appropriately for
+ each dial-up line; this obviates what was <STRONG>tset</STRONG>'s most
+ important use). This implementation behaves like 4.4BSD
tset, with a few exceptions specified here.
- The -S option of BSD tset no longer works; it prints an
- error message to stderr and dies. The -s option only sets
- <STRONG>TERM</STRONG>, not <STRONG>TERMCAP</STRONG>. Both these changes are because the
- <STRONG>TERMCAP</STRONG> variable is no longer supported under terminfo-
+ The <STRONG>-S</STRONG> option of BSD tset no longer works; it prints an
+ error message to stderr and dies. The <STRONG>-s</STRONG> option only sets
+ <STRONG>TERM</STRONG>, not <STRONG>TERMCAP</STRONG>. Both these changes are because the
+ <STRONG>TERMCAP</STRONG> variable is no longer supported under terminfo-
based <STRONG>ncurses</STRONG>, which makes <STRONG>tset</STRONG> <STRONG>-S</STRONG> useless (we made it die
noisily rather than silently induce lossage).
- There was an undocumented 4.4BSD feature that invoking
+ There was an undocumented 4.4BSD feature that invoking
tset via a link named `TSET` (or via any other name begin-
- ning with an upper-case letter) set the terminal to use
+ ning with an upper-case letter) set the terminal to use
upper-case only. This feature has been omitted.
- The -A, -E, -h, -u and -v options were deleted from the
- <STRONG>tset</STRONG> utility in 4.4BSD. None of them were documented in
- 4.3BSD and all are of limited utility at best. The -a, -d,
- and -p options are similarly not documented or useful, but
- were retained as they appear to be in widespread use. It
- is strongly recommended that any usage of these three
- options be changed to use the -m option instead. The -n
- option remains, but has no effect. The -adnp options are
- therefore omitted from the usage summary above.
-
- It is still permissible to specify the -e, -i, and -k
+ The <STRONG>-A</STRONG>, <STRONG>-E</STRONG>, <STRONG>-h</STRONG>, <STRONG>-u</STRONG> and <STRONG>-v</STRONG> options were deleted from the
+ <STRONG>tset</STRONG> utility in 4.4BSD. None of them were documented in
+ 4.3BSD and all are of limited utility at best. The <STRONG>-a</STRONG>, -,
+ and -
+ options are similarly not documented or useful, but were
+ retained as they appear to be in widespread use. It is
+ strongly recommended that any usage of these three options
+ be changed to use the <STRONG>-m</STRONG> option instead. The -n option
+ remains, but has no effect. The <STRONG>-adnp</STRONG> options are there-
+ fore omitted from the usage summary above.
+
+ It is still permissible to specify the <STRONG>-e</STRONG>, <STRONG>-i</STRONG>, and <STRONG>-k</STRONG>
options without arguments, although it is strongly recom-
mended that such usage be fixed to explicitly specify the
character.
As of 4.4BSD, executing <STRONG>tset</STRONG> as <STRONG>reset</STRONG> no longer implies
- the -Q option. Also, the interaction between the - option
+ the <STRONG>-Q</STRONG> option. Also, the interaction between the - option
and the <EM>terminal</EM> argument in some historic implementations
of <STRONG>tset</STRONG> has been removed.
-
</PRE>
<H2>ENVIRONMENT</H2><PRE>
The <STRONG>tset</STRONG> command uses the <STRONG>SHELL</STRONG> and <STRONG>TERM</STRONG> environment vari-
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