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-<H1>tput 1</H1>
-<HR>
+<H1 class="no-header">tput 1</H1>
<PRE>
-<!-- Manpage converted by man2html 3.0.1 -->
+<STRONG><A HREF="tput.1.html">tput(1)</A></STRONG> <STRONG><A HREF="tput.1.html">tput(1)</A></STRONG>
-</PRE>
-<H2>NAME</H2><PRE>
+
+
+
+</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
<STRONG>tput</STRONG>, <STRONG>reset</STRONG> - initialize a terminal or query terminfo
database
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
- <STRONG>tput</STRONG> [<STRONG>-T</STRONG><EM>type</EM>] <EM>capname</EM> [<EM>parms</EM> ... ]
+</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
+ <STRONG>tput</STRONG> [<STRONG>-T</STRONG><EM>type</EM>] <EM>capname</EM> [<EM>parameters</EM>]
+ <STRONG>tput</STRONG> [<STRONG>-T</STRONG><EM>type</EM>] <STRONG>clear</STRONG>
<STRONG>tput</STRONG> [<STRONG>-T</STRONG><EM>type</EM>] <STRONG>init</STRONG>
<STRONG>tput</STRONG> [<STRONG>-T</STRONG><EM>type</EM>] <STRONG>reset</STRONG>
<STRONG>tput</STRONG> [<STRONG>-T</STRONG><EM>type</EM>] <STRONG>longname</STRONG>
<STRONG>tput</STRONG> <STRONG>-V</STRONG>
-</PRE>
-<H2>DESCRIPTION</H2><PRE>
+</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
The <STRONG>tput</STRONG> utility uses the <STRONG>terminfo</STRONG> database to make the
values of terminal-dependent capabilities and information
- available to the shell (see <STRONG><A HREF="sh.1.html">sh(1)</A></STRONG>), to initialize or reset
+ available to the shell (see <STRONG>sh(1)</STRONG>), to initialize or reset
the terminal, or return the long name of the requested
- terminal type. <STRONG>tput</STRONG> outputs a string if the attribute
- (<EM>cap</EM>ability <EM>name</EM>) is of type string, or an integer if the
- attribute is of type integer. If the attribute is of type
- boolean, <STRONG>tput</STRONG> simply sets the exit code (<STRONG>0</STRONG> for TRUE if the
- terminal has the capability, <STRONG>1</STRONG> for FALSE if it does not),
- and produces no output. Before using a value returned on
- standard output, the user should test the exit code [<STRONG>$?</STRONG>,
- see <STRONG><A HREF="sh.1.html">sh(1)</A></STRONG>] to be sure it is <STRONG>0</STRONG>. (See the <STRONG>EXIT</STRONG> <STRONG>CODES</STRONG> and
- <STRONG>DIAGNOSTICS</STRONG> sections.) For a complete list of capabili-
- ties and the <EM>capname</EM> associated with each, see <STRONG>ter-</STRONG>
- <STRONG><A HREF="terminfo.1.html">minfo(1)</A></STRONG>.
+ terminal type. The result depends upon the capability's
+ type:
+
+ string
+ <STRONG>tput</STRONG> writes the string to the standard output. No
+ trailing newline is supplied.
+
+ integer
+ <STRONG>tput</STRONG> writes the decimal value to the standard out-
+ put, with a trailing newline.
+
+ boolean
+ <STRONG>tput</STRONG> simply sets the exit code (<STRONG>0</STRONG> for TRUE if the
+ terminal has the capability, <STRONG>1</STRONG> for FALSE if it
+ does not), and writes nothing to the standard out-
+ put.
+ Before using a value returned on the standard output, the
+ application should test the exit code (e.g., <STRONG>$?</STRONG>, see
+ <STRONG>sh(1)</STRONG>) to be sure it is <STRONG>0</STRONG>. (See the <STRONG>EXIT</STRONG> <STRONG>CODES</STRONG> and <STRONG>DIAG-</STRONG>
+ <STRONG>NOSTICS</STRONG> sections.) For a complete list of capabilities
+ and the <EM>capname</EM> associated with each, see <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
+
+
+</PRE><H3><a name="h3-Options">Options</a></H3><PRE>
<STRONG>-T</STRONG><EM>type</EM> indicates the <EM>type</EM> of terminal. Normally this
option is unnecessary, because the default is taken
from the environment variable <STRONG>TERM</STRONG>. If <STRONG>-T</STRONG> is spec-
ified, then the shell variables <STRONG>LINES</STRONG> and <STRONG>COLUMNS</STRONG>
- will be ignored,and the operating system will not
- be queried for the actual screen size.
+ will also be ignored.
- <EM>capname</EM>
- indicates the attribute from the <STRONG>terminfo</STRONG> database.
- When <STRONG>termcap</STRONG> support is compiled in, the <STRONG>termcap</STRONG>
- name for the attribute is also accepted.
-
- <EM>parms</EM> If the attribute is a string that takes parameters,
- the arguments <EM>parms</EM> will be instantiated into the
- string. An all-numeric argument will be passed to
- the attribute as a number.
-
- Only a few terminfo capabilities require string
- parameters; <STRONG>tput</STRONG> uses a table to decide which to
- pass as strings. Normally <STRONG>tput</STRONG> uses <STRONG>tparm</STRONG> (3x) to
- perform the substitution. If no parameters are
- given for the attribute, <STRONG>tput</STRONG> writes the string
- without performing the substitution.
-
- <STRONG>-S</STRONG> allows more than one capability per invocation of
+ <STRONG>-S</STRONG> allows more than one capability per invocation of
<STRONG>tput</STRONG>. The capabilities must be passed to <STRONG>tput</STRONG> from
the standard input instead of from the command line
- (see example). Only one <EM>capname</EM> is allowed per
- line. The <STRONG>-S</STRONG> option changes the meaning of the <STRONG>0</STRONG>
- and <STRONG>1</STRONG> boolean and string exit codes (see the EXIT
+ (see example). Only one <EM>capname</EM> is allowed per
+ line. The <STRONG>-S</STRONG> option changes the meaning of the <STRONG>0</STRONG>
+ and <STRONG>1</STRONG> boolean and string exit codes (see the EXIT
CODES section).
Again, <STRONG>tput</STRONG> uses a table and the presence of param-
- eters in its input to decide whether to use <STRONG>tparm</STRONG>
- (3x), and how to interpret the parameters.
+ eters in its input to decide whether to use
+ <STRONG><A HREF="tparm.3x.html">tparm(3x)</A></STRONG>, and how to interpret the parameters.
- <STRONG>-V</STRONG> reports the version of ncurses which was used in
+ <STRONG>-V</STRONG> reports the version of ncurses which was used in
this program, and exits.
- <STRONG>init</STRONG> If the <STRONG>terminfo</STRONG> database is present and an entry
+
+</PRE><H3><a name="h3-Commands">Commands</a></H3><PRE>
+ <EM>capname</EM>
+ indicates the capability from the <STRONG>terminfo</STRONG> data-
+ base. When <STRONG>termcap</STRONG> support is compiled in, the
+ <STRONG>termcap</STRONG> name for the capability is also accepted.
+
+ If the capability is a string that takes parame-
+ ters, the arguments following the capability will
+ be used as parameters for the string.
+
+ Most parameters are numbers. Only a few terminfo
+ capabilities require string parameters; <STRONG>tput</STRONG> uses a
+ table to decide which to pass as strings. Normally
+ <STRONG>tput</STRONG> uses <STRONG><A HREF="tparm.3x.html">tparm(3x)</A></STRONG> to perform the substitution.
+ If no parameters are given for the capability, <STRONG>tput</STRONG>
+ writes the string without performing the substitu-
+ tion.
+
+ <STRONG>init</STRONG> If the <STRONG>terminfo</STRONG> database is present and an entry
for the user's terminal exists (see <STRONG>-T</STRONG><EM>type</EM>, above),
- the following will occur: (1) if present, the ter-
- minal's initialization strings will be output (<STRONG>is1</STRONG>,
- <STRONG>is2</STRONG>, <STRONG>is3</STRONG>, <STRONG>if</STRONG>, <STRONG>iprog</STRONG>), (2) any delays (e.g., new-
- line) specified in the entry will be set in the tty
- driver, (3) tabs expansion will be turned on or off
- according to the specification in the entry, and
- (4) if tabs are not expanded, standard tabs will be
- set (every 8 spaces). If an entry does not contain
- the information needed for any of the four above
- activities, that activity will silently be skipped.
-
- <STRONG>reset</STRONG> Instead of putting out initialization strings, the
- terminal's reset strings will be output if present
- (<STRONG>rs1</STRONG>, <STRONG>rs2</STRONG>, <STRONG>rs3</STRONG>, <STRONG>rf</STRONG>). If the reset strings are not
- present, but initialization strings are, the ini-
- tialization strings will be output. Otherwise,
+ the following will occur:
+
+ (1) if present, the terminal's initialization
+ strings will be output as detailed in the <STRONG>ter-</STRONG>
+ <STRONG><A HREF="terminfo.5.html">minfo(5)</A></STRONG> section on <EM>Tabs</EM> <EM>and</EM> <EM>Initialization</EM>,
+
+ (2) any delays (e.g., newline) specified in the
+ entry will be set in the tty driver,
+
+ (3) tabs expansion will be turned on or off
+ according to the specification in the entry,
+ and
+
+ (4) if tabs are not expanded, standard tabs will
+ be set (every 8 spaces).
+
+ If an entry does not contain the information needed
+ for any of these activities, that activity will
+ silently be skipped.
+
+ <STRONG>reset</STRONG> Instead of putting out initialization strings, the
+ terminal's reset strings will be output if present
+ (<STRONG>rs1</STRONG>, <STRONG>rs2</STRONG>, <STRONG>rs3</STRONG>, <STRONG>rf</STRONG>). If the reset strings are not
+ present, but initialization strings are, the ini-
+ tialization strings will be output. Otherwise,
<STRONG>reset</STRONG> acts identically to <STRONG>init</STRONG>.
<STRONG>longname</STRONG>
- If the <STRONG>terminfo</STRONG> database is present and an entry
- for the user's terminal exists (see <STRONG>-T</STRONG><EM>type</EM> above),
+ If the <STRONG>terminfo</STRONG> database is present and an entry
+ for the user's terminal exists (see <STRONG>-T</STRONG><EM>type</EM> above),
then the long name of the terminal will be put out.
The long name is the last name in the first line of
the terminal's description in the <STRONG>terminfo</STRONG> database
[see <STRONG><A HREF="term.5.html">term(5)</A></STRONG>].
- If <STRONG>tput</STRONG> is invoked by a link named <STRONG>reset</STRONG>, this has the
- same effect as <STRONG>tput</STRONG> <STRONG>reset</STRONG>. See <STRONG>tset</STRONG> for comparison, which
- has similar behavior.
+</PRE><H3><a name="h3-Aliases">Aliases</a></H3><PRE>
+ <STRONG>tput</STRONG> handles the <STRONG>clear</STRONG>, <STRONG>init</STRONG> and <STRONG>reset</STRONG> commands specially:
+ it allows for the possibility that it is invoked by a link
+ with those names.
-</PRE>
-<H2>EXAMPLES</H2><PRE>
+ If <STRONG>tput</STRONG> is invoked by a link named <STRONG>reset</STRONG>, this has the
+ same effect as <STRONG>tput</STRONG> <STRONG>reset</STRONG>. The <STRONG><A HREF="tset.1.html">tset(1)</A></STRONG> utility also
+ treats a link named <STRONG>reset</STRONG> specially.
+
+ Before ncurses 6.1, the two utilities were different from
+ each other:
+
+ <STRONG>o</STRONG> <STRONG>tset</STRONG> utility reset the terminal modes and special
+ characters (not done with <STRONG>tput</STRONG>).
+
+ <STRONG>o</STRONG> On the other hand, <STRONG>tset</STRONG>'s repertoire of terminal capa-
+ bilities for resetting the terminal was more limited,
+ i.e., only <STRONG>reset_1string</STRONG>, <STRONG>reset_2string</STRONG> and <STRONG>reset_file</STRONG>
+ in contrast to the tab-stops and margins which are set
+ by this utility.
+
+ <STRONG>o</STRONG> The <STRONG>reset</STRONG> program is usually an alias for <STRONG>tset</STRONG>,
+ because of this difference with resetting terminal
+ modes and special characters.
+
+ If <STRONG>tput</STRONG> is invoked by a link named <STRONG>init</STRONG>, this has the same
+ effect as <STRONG>tput</STRONG> <STRONG>init</STRONG>. Again, you are less likely to use
+ that link because another program named <STRONG>init</STRONG> has a more
+ well-established use.
+
+
+</PRE><H2><a name="h2-EXAMPLES">EXAMPLES</a></H2><PRE>
<STRONG>tput</STRONG> <STRONG>init</STRONG>
Initialize the terminal according to the type of ter-
minal in the environmental variable <STRONG>TERM</STRONG>. This com-
mand should be included in everyone's .profile after
the environmental variable <STRONG>TERM</STRONG> has been exported, as
- illustrated on the <STRONG><A HREF="profile.5.html">profile(5)</A></STRONG> manual page.
+ illustrated on the <STRONG>profile(5)</STRONG> manual page.
<STRONG>tput</STRONG> <STRONG>-T5620</STRONG> <STRONG>reset</STRONG>
Reset an AT&T 5620 terminal, overriding the type of
<STRONG>bold=`tput</STRONG> <STRONG>smso`</STRONG> <STRONG>offbold=`tput</STRONG> <STRONG>rmso`</STRONG>
Set the shell variables <STRONG>bold</STRONG>, to begin stand-out mode
sequence, and <STRONG>offbold</STRONG>, to end standout mode sequence,
- for the current terminal. This might be followed by
- a prompt: <STRONG>echo</STRONG> <STRONG>"${bold}Please</STRONG> <STRONG>type</STRONG> <STRONG>in</STRONG> <STRONG>your</STRONG> <STRONG>name:</STRONG>
+ for the current terminal. This might be followed by
+ a prompt: <STRONG>echo</STRONG> <STRONG>"${bold}Please</STRONG> <STRONG>type</STRONG> <STRONG>in</STRONG> <STRONG>your</STRONG> <STRONG>name:</STRONG>
<STRONG>${offbold}\c"</STRONG>
<STRONG>tput</STRONG> <STRONG>hc</STRONG>
- Set exit code to indicate if the current terminal is
+ Set exit code to indicate if the current terminal is
a hard copy terminal.
<STRONG>tput</STRONG> <STRONG>cup</STRONG> <STRONG>23</STRONG> <STRONG>4</STRONG>
- Send the sequence to move the cursor to row 23, col-
+ Send the sequence to move the cursor to row 23, col-
umn 4.
<STRONG>tput</STRONG> <STRONG>cup</STRONG>
parameters substituted.
<STRONG>tput</STRONG> <STRONG>longname</STRONG>
- Print the long name from the <STRONG>terminfo</STRONG> database for
- the type of terminal specified in the environmental
+ Print the long name from the <STRONG>terminfo</STRONG> database for
+ the type of terminal specified in the environmental
variable <STRONG>TERM</STRONG>.
<STRONG>tput</STRONG> <STRONG>-S</STRONG> <STRONG><<!</STRONG>
<STRONG>></STRONG> <STRONG>bold</STRONG>
<STRONG>></STRONG> <STRONG>!</STRONG>
- This example shows <STRONG>tput</STRONG> processing several capabili-
- ties in one invocation. It clears the screen, moves
- the cursor to position 10, 10 and turns on bold
- (extra bright) mode. The list is terminated by an
+ This example shows <STRONG>tput</STRONG> processing several capabili-
+ ties in one invocation. It clears the screen, moves
+ the cursor to position 10, 10 and turns on bold
+ (extra bright) mode. The list is terminated by an
exclamation mark (<STRONG>!</STRONG>) on a line by itself.
-</PRE>
-<H2>FILES</H2><PRE>
+</PRE><H2><a name="h2-FILES">FILES</a></H2><PRE>
<STRONG>/usr/share/terminfo</STRONG>
compiled terminal description database
- <STRONG>/usr/include/curses.h</STRONG>
- <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG> header file
-
- <STRONG>/usr/include/term.h</STRONG>
- <STRONG>terminfo</STRONG> header file
-
<STRONG>/usr/share/tabset/*</STRONG>
tab settings for some terminals, in a format appro-
- priate to be output to the terminal (escape
- sequences that set margins and tabs); for more
- information, see the "Tabs and Initialization" sec-
+ priate to be output to the terminal (escape
+ sequences that set margins and tabs); for more
+ information, see the <EM>Tabs</EM> <EM>and</EM> <EM>Initialization</EM>, sec-
tion of <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>
-</PRE>
-<H2>EXIT CODES</H2><PRE>
+</PRE><H2><a name="h2-EXIT-CODES">EXIT CODES</a></H2><PRE>
If the <STRONG>-S</STRONG> option is used, <STRONG>tput</STRONG> checks for errors from each
- line, and if any errors are found, will set the exit code
- to 4 plus the number of lines with errors. If no errors
- are found, the exit code is <STRONG>0</STRONG>. No indication of which
+ line, and if any errors are found, will set the exit code
+ to 4 plus the number of lines with errors. If no errors
+ are found, the exit code is <STRONG>0</STRONG>. No indication of which
line failed can be given so exit code <STRONG>1</STRONG> will never appear.
- Exit codes <STRONG>2</STRONG>, <STRONG>3</STRONG>, and <STRONG>4</STRONG> retain their usual interpretation.
+ Exit codes <STRONG>2</STRONG>, <STRONG>3</STRONG>, and <STRONG>4</STRONG> retain their usual interpretation.
If the <STRONG>-S</STRONG> option is not used, the exit code depends on the
type of <EM>capname</EM>:
- <EM>boolean</EM>
- a value of <STRONG>0</STRONG> is set for TRUE and <STRONG>1</STRONG> for FALSE.
-
- <EM>string</EM> a value of <STRONG>0</STRONG> is set if the <EM>capname</EM> is defined
- for this terminal <EM>type</EM> (the value of <EM>capname</EM>
- is returned on standard output); a value of <STRONG>1</STRONG>
- is set if <EM>capname</EM> is not defined for this ter-
- minal <EM>type</EM> (nothing is written to standard
- output).
-
- <EM>integer</EM>
- a value of <STRONG>0</STRONG> is always set, whether or not
- <EM>capname</EM> is defined for this terminal <EM>type</EM>. To
- determine if <EM>capname</EM> is defined for this ter-
- minal <EM>type</EM>, the user must test the value writ-
- ten to standard output. A value of <STRONG>-1</STRONG> means
- that <EM>capname</EM> is not defined for this terminal
- <EM>type</EM>.
-
- <EM>other</EM> <STRONG>reset</STRONG> or <STRONG>init</STRONG> may fail to find their respec-
- tive files. In that case, the exit code is
- set to 4 + <STRONG>errno</STRONG>.
+ <EM>boolean</EM>
+ a value of <STRONG>0</STRONG> is set for TRUE and <STRONG>1</STRONG> for FALSE.
+
+ <EM>string</EM> a value of <STRONG>0</STRONG> is set if the <EM>capname</EM> is defined
+ for this terminal <EM>type</EM> (the value of <EM>capname</EM> is
+ returned on standard output); a value of <STRONG>1</STRONG> is
+ set if <EM>capname</EM> is not defined for this terminal
+ <EM>type</EM> (nothing is written to standard output).
+
+ <EM>integer</EM>
+ a value of <STRONG>0</STRONG> is always set, whether or not <EM>cap-</EM>
+ <EM>name</EM> is defined for this terminal <EM>type</EM>. To
+ determine if <EM>capname</EM> is defined for this termi-
+ nal <EM>type</EM>, the user must test the value written
+ to standard output. A value of <STRONG>-1</STRONG> means that
+ <EM>capname</EM> is not defined for this terminal <EM>type</EM>.
+
+ <EM>other</EM> <STRONG>reset</STRONG> or <STRONG>init</STRONG> may fail to find their respective
+ files. In that case, the exit code is set to 4
+ + <STRONG>errno</STRONG>.
Any other exit code indicates an error; see the DIAGNOS-
TICS section.
-
-</PRE>
-<H2>DIAGNOSTICS</H2><PRE>
+</PRE><H2><a name="h2-DIAGNOSTICS">DIAGNOSTICS</a></H2><PRE>
<STRONG>tput</STRONG> prints the following error messages and sets the cor-
responding exit codes.
exit code error message
---------------------------------------------------------------------
<STRONG>0</STRONG> (<EM>capname</EM> is a numeric variable that is not specified in
- the <STRONG><A HREF="terminfo.1.html">terminfo(1)</A></STRONG> database for this terminal type, e.g.
+ the <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG> database for this terminal type, e.g.
<STRONG>tput</STRONG> <STRONG>-T450</STRONG> <STRONG>lines</STRONG> and <STRONG>tput</STRONG> <STRONG>-T2621</STRONG> <STRONG>xmc</STRONG>)
<STRONG>1</STRONG> no error message is printed, see the <STRONG>EXIT</STRONG> <STRONG>CODES</STRONG> section.
<STRONG>2</STRONG> usage error
---------------------------------------------------------------------
-</PRE>
-<H2>PORTABILITY</H2><PRE>
- The <STRONG>longname</STRONG> and <STRONG>-S</STRONG> options, and the parameter-substitu-
- tion features used in the <STRONG>cup</STRONG> example, are not supported
- in BSD curses or in AT&T/USL curses before SVr4.
-
-
-</PRE>
-<H2>SEE ALSO</H2><PRE>
- <STRONG><A HREF="clear.1.html">clear(1)</A></STRONG>, <STRONG><A HREF="stty.1.html">stty(1)</A></STRONG>, <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE>
+ The <STRONG>tput</STRONG> command was begun by Bill Joy in 1980. The ini-
+ tial version only cleared the screen.
+
+ AT&T System V provided a different <STRONG>tput</STRONG> command, whose
+ <STRONG>init</STRONG> and <STRONG>reset</STRONG> subcommands (more than half the program)
+ were incorporated from the <STRONG>reset</STRONG> feature of BSD <STRONG>tset</STRONG> writ-
+ ten by Eric Allman. Later the corresponding source code
+ for <EM>reset</EM> was removed from the BSD <STRONG>tset</STRONG> (in June 1993,
+ released in 4.4BSD-Lite a year later).
+
+ Keith Bostic replaced the BSD <STRONG>tput</STRONG> command in 1989 with a
+ new implementation based on the AT&T System V program
+ <STRONG>tput</STRONG>. Like the AT&T program, Bostic's version accepted
+ some parameters named for <EM>terminfo</EM> <EM>capabilities</EM> (<STRONG>clear</STRONG>,
+ <STRONG>init</STRONG>, <STRONG>longname</STRONG> and <STRONG>reset</STRONG>). However (because he had only
+ termcap available), it accepted <EM>termcap</EM> <EM>names</EM> for other
+ capabilities. Also, Bostic's BSD <STRONG>tput</STRONG> did not modify the
+ terminal I/O modes as the earlier BSD <STRONG>tset</STRONG> had done.
+
+ At the same time, Bostic added a shell script named
+ "clear", which used <STRONG>tput</STRONG> to clear the screen.
+
+ Both of these appeared in 4.4BSD, becoming the "modern"
+ BSD implementation of <STRONG>tput</STRONG>.
+
+
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+ This implementation of <STRONG>tput</STRONG> differs from AT&T <STRONG>tput</STRONG> in two
+ important areas:
+
+ <STRONG>o</STRONG> <STRONG>tput</STRONG> <EM>capname</EM> writes to the standard output. That need
+ not be a regular terminal. However, the subcommands
+ which manipulate terminal modes may not use the stan-
+ dard output.
+
+ The AT&T implementation's <STRONG>init</STRONG> and <STRONG>reset</STRONG> commands use
+ the BSD (4.1c) <STRONG>tset</STRONG> source, which manipulates terminal
+ modes. It successively tries standard output, stan-
+ dard error, standard input before falling back to
+ "/dev/tty" and finally just assumes a 1200Bd terminal.
+ When updating terminal modes, it ignores errors.
+
+ Until changes made after ncurses 6.0, <STRONG>tput</STRONG> did not
+ modify terminal modes. <STRONG>tput</STRONG> now uses a similar
+ scheme, using functions shared with <STRONG>tset</STRONG> (and ulti-
+ mately based on the 4.4BSD <STRONG>tset</STRONG>). If it is not able
+ to open a terminal, e.g., when running in <STRONG>cron</STRONG>, <STRONG>tput</STRONG>
+ will return an error.
+
+ <STRONG>o</STRONG> AT&T <STRONG>tput</STRONG> guesses the type of its <EM>capname</EM> operands by
+ seeing if all of the characters are numeric, or not.
+
+ Most implementations which provide support for <EM>capname</EM>
+ operands use the <EM>tparm</EM> function to expand parameters
+ in it. That function expects a mixture of numeric and
+ string parameters, requiring <STRONG>tput</STRONG> to know which type
+ to use.
+
+ This implementation uses a table to determine the
+ parameter types for the standard <EM>capname</EM> operands, and
+ an internal library function to analyze nonstandard
+ <EM>capname</EM> operands.
+
+ The <STRONG>longname</STRONG> and <STRONG>-S</STRONG> options, and the parameter-substitu-
+ tion features used in the <STRONG>cup</STRONG> example, were not supported
+ in BSD curses before 4.3reno (1989) or in AT&T/USL curses
+ before SVr4 (1988).
+
+ IEEE Std 1003.1/The Open Group Base Specifications Issue
+ 7 (POSIX.1-2008) documents only the operands for <STRONG>clear</STRONG>,
+ <STRONG>init</STRONG> and <STRONG>reset</STRONG>. There are a few interesting observations
+ to make regarding that:
+
+ <STRONG>o</STRONG> In this implementation, <STRONG>clear</STRONG> is part of the <EM>capname</EM>
+ support. The others (<STRONG>init</STRONG> and <STRONG>longname</STRONG>) do not corre-
+ spond to terminal capabilities.
+
+ <STRONG>o</STRONG> Other implementations of <STRONG>tput</STRONG> on SVr4-based systems
+ such as Solaris, IRIX64 and HPUX as well as others
+ such as AIX and Tru64 provide support for <EM>capname</EM> op-
+ erands.
+
+ <STRONG>o</STRONG> A few platforms such as FreeBSD recognize termcap
+ names rather than terminfo capability names in their
+ respective <STRONG>tput</STRONG> commands. Since 2010, NetBSD's <STRONG>tput</STRONG>
+ uses terminfo names. Before that, it (like FreeBSD)
+ recognized termcap names.
+
+ Because (apparently) <EM>all</EM> of the certified Unix systems
+ support the full set of capability names, the reasoning
+ for documenting only a few may not be apparent.
+
+ <STRONG>o</STRONG> X/Open Curses Issue 7 documents <STRONG>tput</STRONG> differently, with
+ <EM>capname</EM> and the other features used in this implemen-
+ tation.
+
+ <STRONG>o</STRONG> That is, there are two standards for <STRONG>tput</STRONG>: POSIX (a
+ subset) and X/Open Curses (the full implementation).
+ POSIX documents a subset to avoid the complication of
+ including X/Open Curses and the terminal capabilities
+ database.
+
+ <STRONG>o</STRONG> While it is certainly possible to write a <STRONG>tput</STRONG> program
+ without using curses, none of the systems which have a
+ curses implementation provide a <STRONG>tput</STRONG> utility which
+ does not provide the <EM>capname</EM> feature.
+
+
+</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
+ <STRONG><A HREF="clear.1.html">clear(1)</A></STRONG>, <STRONG>stty(1)</STRONG>, <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG>, <STRONG><A HREF="tset.1.html">tset(1)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>,
+ <STRONG><A HREF="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>.
+
+ This describes <STRONG>ncurses</STRONG> version 6.0 (patch 20161224).
+
+ <STRONG><A HREF="tput.1.html">tput(1)</A></STRONG>
</PRE>
-<HR>
-<ADDRESS>
-Man(1) output converted with
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-</ADDRESS>
+<div class="nav">
+<ul>
+<li><a href="#h2-NAME">NAME</a></li>
+<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
+<li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
+<ul>
+<li><a href="#h3-Options">Options</a></li>
+<li><a href="#h3-Commands">Commands</a></li>
+<li><a href="#h3-Aliases">Aliases</a></li>
+</ul>
+</li>
+<li><a href="#h2-EXAMPLES">EXAMPLES</a></li>
+<li><a href="#h2-FILES">FILES</a></li>
+<li><a href="#h2-EXIT-CODES">EXIT CODES</a></li>
+<li><a href="#h2-DIAGNOSTICS">DIAGNOSTICS</a></li>
+<li><a href="#h2-HISTORY">HISTORY</a></li>
+<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
+<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
+</ul>
+</div>
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