* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************
- * @Id: tput.1,v 1.44 2016/08/20 23:40:31 tom Exp @
+ * @Id: tput.1,v 1.46 2016/10/22 19:57:25 tom Exp @
-->
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<HTML>
</PRE><H3><a name="h3-Aliases">Aliases</a></H3><PRE>
- <STRONG>tput</STRONG> handles the <STRONG>init</STRONG> and <STRONG>reset</STRONG> commands specially: it
- allows for the possibility that it is invoked by a link
+ <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.
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:
+ treats a link named <STRONG>reset</STRONG> specially.
- <STRONG>o</STRONG> That utility resets the terminal modes and special
- characters (not done here).
+ Before ncurses 6.1, the two utilities were different from
+ each other:
- <STRONG>o</STRONG> On the other hand, tset's repertoire of terminal capa-
- bilities for resetting the terminal is more limited,
+ <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 tset, due to
- the resetting of terminal modes and special charac-
- ters.
+ <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
+ 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
+ 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>profile(5)</STRONG> manual page.
<STRONG>tput</STRONG> <STRONG>-T5620</STRONG> <STRONG>reset</STRONG>
- Reset an AT&T 5620 terminal, overriding the type of
+ Reset an AT&T 5620 terminal, overriding the type of
terminal in the environmental variable <STRONG>TERM</STRONG>.
<STRONG>tput</STRONG> <STRONG>cup</STRONG> <STRONG>0</STRONG> <STRONG>0</STRONG>
<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.
<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 <EM>Tabs</EM> <EM>and</EM> <EM>Initialization</EM>, 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><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 terminal
+ <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
+ 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
+ <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-
+ Any other exit code indicates an error; see the DIAGNOS-
TICS section.
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>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>1</STRONG> no error message is printed, see the <STRONG>EXIT</STRONG> <STRONG>CODES</STRONG> section.
<STRONG>2</STRONG> usage error
</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE>
- The <STRONG>tput</STRONG> command was begun by Bill Joy in 1980. The ini-
+ 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)
+ 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,
+ 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
+ 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
+ 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"
+ 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
+ This implementation of <STRONG>tput</STRONG> differs from AT&T <STRONG>tput</STRONG> in two
important areas:
- <STRONG>o</STRONG> tput <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-
+ <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 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
+ 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, tput did not
- modify terminal modes. tput now uses a similar
- scheme, using functions shared with tset (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>, tput
+ 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
+ <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
+ 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
+ string parameters, requiring <STRONG>tput</STRONG> to know which type
to use.
- This implementation uses a table to determine the
+ 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
+ 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
+ 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
+ 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>
+ <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-
+ <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)
+ <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
+ 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-
+ <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
+ <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
+ 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="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 20161015).
+ This describes <STRONG>ncurses</STRONG> version 6.0 (patch 20161224).
projects / ncurses.git / blobdiff