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+<TITLE>tset 1</TITLE>
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<BODY>
+<H1>tset 1</H1>
+<HR>
<PRE>
<!-- 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>
+
+
+
</PRE>
<H2>NAME</H2><PRE>
- <B>tset</B>, <B>reset</B> - terminal initialization
+ <STRONG>tset</STRONG>, <STRONG>reset</STRONG> - terminal initialization
</PRE>
<H2>SYNOPSIS</H2><PRE>
- tset [-IQVqrs] [-] [-e <I>ch</I>] [-i <I>ch</I>] [-k <I>ch</I>] [-m <I>mapping</I>]
- [<I>terminal</I>]
- reset [-IQVqrs] [-] [-e <I>ch</I>] [-i <I>ch</I>] [-k <I>ch</I>] [-m <I>mapping</I>]
- [<I>terminal</I>]
+ <STRONG>tset</STRONG> [<STRONG>-IQVcqrsw</STRONG>] [<STRONG>-</STRONG>] [<STRONG>-e</STRONG> <EM>ch</EM>] [<STRONG>-i</STRONG> <EM>ch</EM>] [<STRONG>-k</STRONG> <EM>ch</EM>] [<STRONG>-m</STRONG> <EM>mapping</EM>]
+ [<EM>terminal</EM>]
+ <STRONG>reset</STRONG> [<STRONG>-IQVcqrsw</STRONG>] [<STRONG>-</STRONG>] [<STRONG>-e</STRONG> <EM>ch</EM>] [<STRONG>-i</STRONG> <EM>ch</EM>] [<STRONG>-k</STRONG> <EM>ch</EM>] [<STRONG>-m</STRONG> <EM>mapping</EM>]
+ [<EM>terminal</EM>]
</PRE>
<H2>DESCRIPTION</H2><PRE>
- <B>Tset</B> initializes terminals. <B>Tset</B> first determines the
+ <STRONG>Tset</STRONG> initializes terminals. <STRONG>Tset</STRONG> first determines the
type of terminal that you are using. This determination
is done as follows, using the first terminal type found.
- 1. The <B>terminal</B> argument specified on the command line.
+ 1. The <STRONG>terminal</STRONG> argument specified on the command line.
- 2. The value of the <B>TERM</B> environmental variable.
+ 2. The value of the <STRONG>TERM</STRONG> environmental variable.
3. (BSD systems only.) The terminal type associated with
- the standard error output device in the <I>/etc/ttys</I> file.
- (On Linux and System-V-like UNIXes, <I>getty</I> does this job by
- setting <B>TERM</B> according to the type passed to it by
- <I>/etc/inittab</I>.)
+ the standard error output device in the <EM>/etc/ttys</EM> file.
+ (On System-V-like UNIXes and systems using that conven-
+ tion, <EM>getty</EM> does this job by setting <STRONG>TERM</STRONG> according to the
+ type passed to it by <EM>/etc/inittab</EM>.)
- 4. The default terminal type, ``unknown''.
+ 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
- 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-
- firms the type, or, another type can be entered to specify
- a new type. Once the terminal type has been determined,
- the terminfo entry for the terminal is retrieved. If no
- terminfo entry is found for the type, the user is prompted
- for another terminal type.
-
- Once the terminfo entry is retrieved, the window size,
- backspace, interrupt and line kill characters (among many
+ line, the <STRONG>-m</STRONG> option mappings are then applied (see the
+ section <STRONG>TERMINAL</STRONG> <STRONG>TYPE</STRONG> <STRONG>MAPPING</STRONG> for more information).
+ Then, if the terminal type begins with a question mark
+ ("?"), the user is prompted for confirmation of the termi-
+ nal type. An empty response confirms the type, or,
+ another type can be entered to specify a new type. Once
+ the terminal type has been determined, the terminfo entry
+ for the terminal is retrieved. If no terminfo entry is
+ found for the type, the user is prompted for another ter-
+ minal type.
+
+ Once the terminfo entry is retrieved, the window size,
+ backspace, interrupt and line kill characters (among many
other things) are set and the terminal and tab initializa-
- tion strings are sent to the standard error output.
- Finally, if the erase, interrupt and line kill characters
- have changed, or are not set to their default values,
- their values are displayed to the standard error output.
-
- When invoked as <B>reset</B>, <B>tset</B> sets cooked and echo modes,
+ tion strings are sent to the standard error output.
+ Finally, if the erase, interrupt and line kill characters
+ have changed, or are not set to their default values,
+ their values are displayed to the standard error output.
+ Use the <STRONG>-c</STRONG> or <STRONG>-w</STRONG> option to select only the window sizing
+ versus the other initialization. If neither option is
+ given, both are assumed.
+
+ When invoked as <STRONG>reset</STRONG>, <STRONG>tset</STRONG> sets cooked and echo modes,
turns off cbreak and raw modes, turns on newline transla-
tion and resets any unset special characters to their
default values before doing the terminal initialization
leaving a terminal in an abnormal state. Note, you may
have to type
- <B><LF>reset<LF></B>
+ <STRONG><LF>reset<LF></STRONG>
(the line-feed character is normally control-J) to get the
terminal to work, as carriage-return may no longer work in
The options are as follows:
- -q 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.
+ <STRONG>-c</STRONG> Set control characters and modes.
- -e Set the erase character to <I>ch</I>.
+ <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
- line kill characters.
+ <STRONG>-i</STRONG> Set the interrupt character to <EM>ch</EM>.
- <B>-V</B> reports the version of ncurses which was used in this
- program, and exits.
+ <STRONG>-k</STRONG> Set the line kill character to <EM>ch</EM>.
- -i Set the interrupt character to <I>ch</I>.
+ <STRONG>-m</STRONG> Specify a mapping from a port type to a terminal.
+ See the section <STRONG>TERMINAL</STRONG> <STRONG>TYPE</STRONG> <STRONG>MAPPING</STRONG> for more infor-
+ mation.
- -k Set the line kill character to <I>ch</I>.
+ <STRONG>-Q</STRONG> Do not display any values for the erase, interrupt
+ and line kill characters. Normally <STRONG>tset</STRONG> displays the
+ values for control characters which differ from the
+ system's default values.
- -m Specify a mapping from a port type to a terminal.
- See below for more information.
+ <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.
- -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
- the environment variable <B>TERM</B> to the standard output.
- See the section below on setting the environment for
- details.
+ <STRONG>-s</STRONG> Print the sequence of shell commands to initialize
+ the environment variable <STRONG>TERM</STRONG> to the standard output.
+ See the section <STRONG>SETTING</STRONG> <STRONG>THE</STRONG> <STRONG>ENVIRONMENT</STRONG> for details.
- The arguments for the -e, -i, and -k 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''.
+ <STRONG>-V</STRONG> reports the version of ncurses which was used in this
+ program, and exits.
+
+ <STRONG>-w</STRONG> Resize the window to match the size deduced via
+ <STRONG>setupterm</STRONG>. Normally this has no effect, unless
+ <STRONG>setupterm</STRONG> is not able to detect the window size.
+
+ 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".
</PRE>
<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 <B>SHELL</B> environmental variable
- ends in ``csh'', the commands are for <B>csh</B>, otherwise, they
- are for <B>sh</B>. Note, the <B>csh</B> commands set and unset the
- shell variable <B>noglob</B>, leaving it unset. The following
- line in the <B>.login</B> or <B>.profile</B> files will initialize the
+ the standard output. If the <STRONG>SHELL</STRONG> environmental variable
+ ends in "csh", the commands are for <STRONG>csh</STRONG>, otherwise, they
+ are for <STRONG>sh</STRONG>. Note, the <STRONG>csh</STRONG> commands set and unset the
+ shell variable <STRONG>noglob</STRONG>, leaving it unset. The following
+ line in the <STRONG>.login</STRONG> or <STRONG>.profile</STRONG> files will initialize the
environment correctly:
eval `tset -s options ... `
-
</PRE>
<H2>TERMINAL TYPE MAPPING</H2><PRE>
When the terminal is not hardwired into the system (or the
current system information is incorrect) the terminal type
- derived from the <I>/etc/ttys</I> file or the <B>TERM</B> environmental
- variable is often something generic like <B>network</B>, <B>dialup</B>,
- or <B>unknown</B>. When <B>tset</B> is used in a startup script it is
+ derived from the <EM>/etc/ttys</EM> file or the <STRONG>TERM</STRONG> environmental
+ variable is often something generic like <STRONG>network</STRONG>, <STRONG>dialup</STRONG>,
+ or <STRONG>unknown</STRONG>. When <STRONG>tset</STRONG> is used in a startup script it is
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
- conditions to a terminal type, that is, to tell <B>tset</B> ``If
+ 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''.
+ that kind of terminal".
- The argument to the -m option consists of an optional port
+ The argument to the <STRONG>-m</STRONG> option consists of an optional port
type, an optional operator, an optional baud rate specifi-
- cation, an optional colon (``:'') character and a terminal
+ 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.
+ 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
+ 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:
- <B>dialup>9600:vt100</B>. The port type is dialup , the operator
+ <STRONG>dialup>9600:vt100</STRONG>. The port type is dialup , the operator
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 <B>dialup</B>, and the baud rate
- is greater than 9600 baud, a terminal type of <B>vt100</B> will
+ 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
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, <B>-m</B>
- <B>dialup:vt100</B> <B>-m</B> <B>:?xterm</B> will cause any dialup port,
+ 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
are actually using an xterm terminal.
- No whitespace characters are permitted in the -m option
+ 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 -m option argument be
- placed within single quote characters, and that <B>csh</B> users
- insert a backslash character (``\'') before any exclama-
- tion marks (``!'').
+ 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 exclamation
+ marks ("!").
</PRE>
<H2>HISTORY</H2><PRE>
- The <B>tset</B> command appeared in BSD 3.0. The <B>ncurses</B> imple-
+ 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 <B>tset</B> utility has been provided for backward-compati-
+ The <STRONG>tset</STRONG> utility has been provided for backward-compati-
bility with BSD environments (under most modern UNIXes,
- <B>/etc/inittab</B> and <B><A HREF="getty.1.html">getty(1)</A></B> can set <B>TERM</B> appropriately for
- each dial-up line; this obviates what was <B>tset</B>'s most
+ <STRONG>/etc/inittab</STRONG> and <STRONG>getty(1)</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
- <B>TERM</B>, not <B>TERMCAP</B>. Both these changes are because the
- <B>TERMCAP</B> variable is no longer supported under terminfo-
- based <B>ncurses</B>, which makes <B>tset</B> <B>-S</B> useless (we made it die
+ 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 of 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
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
- <B>tset</B> 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
+ 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>,
+ <STRONG>-d</STRONG>, and <STRONG>-p</STRONG> 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 <STRONG>-n</STRONG>
+ option remains, but has no effect. The <STRONG>-adnp</STRONG> options are
therefore omitted from the usage summary above.
- It is still permissible to specify the -e, -i, and -k
+ 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 <B>tset</B> as <B>reset</B> no longer implies
- the -Q option. Also, the interaction between the - option
- and the <I>terminal</I> argument in some historic implementations
- of <B>tset</B> has been removed.
-
+ As of 4.4BSD, executing <STRONG>tset</STRONG> as <STRONG>reset</STRONG> no longer implies
+ 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 <B>tset</B> command uses the <B>SHELL</B> and <B>TERM</B> environment vari-
- ables.
+ The <STRONG>tset</STRONG> command uses these environment variables:
+
+ SHELL
+ tells <STRONG>tset</STRONG> whether to initialize <STRONG>TERM</STRONG> using <STRONG>sh</STRONG> or <STRONG>csh</STRONG>
+ syntax.
+
+ TERM Denotes your terminal type. Each terminal type is
+ distinct, though many are similar.
+
+ TERMCAP
+ may denote the location of a termcap database. If it
+ is not an absolute pathname, e.g., begins with a `/',
+ <STRONG>tset</STRONG> removes the variable from the environment before
+ looking for the terminal description.
</PRE>
</PRE>
<H2>SEE ALSO</H2><PRE>
- <B><A HREF="csh.1.html">csh(1)</A></B>, <B><A HREF="sh.1.html">sh(1)</A></B>, <B><A HREF="stty.1.html">stty(1)</A></B>, <B><A HREF="tty.4.html">tty(4)</A></B>, <B><A HREF="termcap.5.html">termcap(5)</A></B>, <B><A HREF="ttys.5.html">ttys(5)</A></B>, envi-
- <B><A HREF="ron.7.html">ron(7)</A></B>
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+ <STRONG>csh(1)</STRONG>, <STRONG>sh(1)</STRONG>, <STRONG>stty(1)</STRONG>, <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>, <STRONG>tty(4)</STRONG>,
+ <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>, <STRONG>ttys(5)</STRONG>, <STRONG>environ(7)</STRONG>
+ This describes <STRONG>ncurses</STRONG> version 5.9 (patch 20140524).
+ <STRONG><A HREF="tset.1.html">tset(1)</A></STRONG>
</PRE>
<HR>
<ADDRESS>
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