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-<H1 class="no-header">tput 1</H1>
+<H1 class="no-header">tput 1 2023-10-14 ncurses 6.4 User commands</H1>
<PRE>
-<STRONG><A HREF="tput.1.html">tput(1)</A></STRONG>
General Commands Manual <STRONG><A HREF="tput.1.html">tput(1)</A></STRONG>
+<STRONG><A HREF="tput.1.html">tput(1)</A></STRONG>
User commands <STRONG><A HREF="tput.1.html">tput(1)</A></STRONG>
</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
- <STRONG>tput</STRONG>, <STRONG>reset</STRONG> - initialize a terminal or query terminfo database
+ <STRONG>tput</STRONG>, <STRONG>reset</STRONG> - initialize a terminal or query <EM>terminfo</EM> database
</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
</PRE><H2><a name="h2-FILES">FILES</a></H2><PRE>
- <STRONG>/usr/share/terminfo</STRONG>
- compiled terminal description database
+ <EM>/usr/share/tabset</EM>
+ tab stop initialization database
- <STRONG>/usr/share/tabset/*</STRONG>
- tab settings for some terminals, in a format appropriate 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>,
- section of <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>
+ <EM>/usr/share/terminfo</EM>
+ compiled terminal description database
</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 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. If
- the <STRONG>-S</STRONG> option is not used, the exit code depends on the type of
+ 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. 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
+ <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>capname</EM> is defined
- for this terminal <EM>type</EM>. To determine if <EM>capname</EM> is defined
- for this terminal <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
+ for this terminal <EM>type</EM>. To determine if <EM>capname</EM> is defined
+ for this terminal <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
+ <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 DIAGNOSTICS section.
</PRE><H2><a name="h2-DIAGNOSTICS">DIAGNOSTICS</a></H2><PRE>
- <STRONG>tput</STRONG> prints the following error messages and sets the corresponding
+ <STRONG>tput</STRONG> prints the following error messages and sets the corresponding
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.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>0</STRONG> (<EM>capname</EM> is a numeric variable that is not specified in
+ 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>-Thp2621</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
<STRONG>3</STRONG> unknown terminal <EM>type</EM> or no <STRONG>terminfo</STRONG> database
</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE>
- The <STRONG>tput</STRONG> command was begun by Bill Joy in 1980. The initial version
+ The <STRONG>tput</STRONG> command was begun by Bill Joy in 1980. The initial 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> written by Eric Allman.
+ AT&T System V provided a different <STRONG>tput</STRONG> command:
+
+ <STRONG>o</STRONG> SVr2 provided a rudimentary <STRONG>tput</STRONG> which checked the parameter
+ against each predefined capability and returned the corresponding
+ value. This version of <STRONG>tput</STRONG> did not use <STRONG><A HREF="curs_terminfo.3x.html">tparm(3x)</A></STRONG> for the
+ capabilities which are parameterized.
+
+ <STRONG>o</STRONG> SVr3 replaced that, a year later, by a more extensive program 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> written by Eric
+ Allman.
+
+ <STRONG>o</STRONG> SVr4 added color initialization using the <STRONG>orig_colors</STRONG> and <STRONG>orig_pair</STRONG>
+ capabilities in the <STRONG>init</STRONG> subcommand.
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 (<STRONG>clear</STRONG>, <STRONG>init</STRONG>, <STRONG>longname</STRONG> and <STRONG>reset</STRONG>). However (because he
+ had only <EM>termcap</EM> available), it accepted <EM>termcap</EM> names 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.
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 ultimately 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.
+ to open a terminal, e.g., when running in <STRONG>cron(1)</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
+ the <STRONG>tparm</STRONG> 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.
for the standard <EM>capname</EM> operands, and an internal library function
to analyze nonstandard <EM>capname</EM> operands.
+ Besides providing more reliable operation than AT&T's utility, a
+ portability problem is introduced by this analysis: An OpenBSD
+ developer adapted the internal library function from ncurses to
+ port NetBSD's termcap-based <STRONG>tput</STRONG> to terminfo. That had been
+ modified to interpret multiple commands on a line. Portable
+ applications should not rely upon this feature; ncurses provides it
+ to support applications written specifically for OpenBSD.
+
This implementation (unlike others) can accept both <EM>termcap</EM> and
<EM>terminfo</EM> names for the <EM>capname</EM> feature, if <EM>termcap</EM> support is compiled
in. However, the predefined <EM>termcap</EM> and <EM>terminfo</EM> names have two
</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="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
-
- This describes <STRONG>ncurses</STRONG> version 6.2 (patch 20210828).
+ <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="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>
-
<STRONG><A HREF="tput.1.html">tput(1)</A></STRONG>
+
ncurses 6.4 2023-10-14 <STRONG><A HREF="tput.1.html">tput(1)</A></STRONG>
</PRE>
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