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<H1 class="no-header">tput 1 2025-11-11 ncurses 6.6 User commands</H1>
<PRE>
<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> - initialize a terminal, exercise its capabilities, or query <EM>term-</EM>
       <EM>info</EM> database


</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
       <STRONG>tput</STRONG> [<STRONG>-v</STRONG>] [<STRONG>-T</STRONG> <EM>terminal-type</EM>] {<EM>cap-code</EM> [<EM>parameter</EM> ...]} ...

       <STRONG>tput</STRONG> [<STRONG>-v</STRONG>] [<STRONG>-T</STRONG> <EM>terminal-type</EM>] [<STRONG>-x</STRONG>] <STRONG>clear</STRONG>

       <STRONG>tput</STRONG> [<STRONG>-v</STRONG>] [<STRONG>-T</STRONG> <EM>terminal-type</EM>] <STRONG>init</STRONG>

       <STRONG>tput</STRONG> [<STRONG>-v</STRONG>] [<STRONG>-T</STRONG> <EM>terminal-type</EM>] <STRONG>reset</STRONG>

       <STRONG>tput</STRONG> [<STRONG>-v</STRONG>] [<STRONG>-T</STRONG> <EM>terminal-type</EM>] <STRONG>longname</STRONG>

       <STRONG>tput</STRONG> [<STRONG>-v</STRONG>] <STRONG>-S</STRONG>

       <STRONG>tput</STRONG> [<STRONG>-v</STRONG>] <STRONG>-V</STRONG>


</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
       <STRONG>tput</STRONG>  uses  the <EM>terminfo</EM> library and database to make terminal-specific
       capabilities and information available to the shell, to  initialize  or
       reset  the  terminal,  or  to  report  a description of the current (or
       specified) terminal type.  Terminal capabilities are accessed  by  <EM>cap-</EM>
       <EM>code</EM>.

       <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>  discusses  terminal  capabilities at length and presents a
       complete list of standardized <EM>cap-codes</EM>.  <STRONG><A HREF="user_caps.5.html">user_caps(5)</A></STRONG>  presents  other
       widely used but non-standard capabilities.

       When   retrieving  capability  values,  the  result  depends  upon  the
       capability's type.

       Boolean  <STRONG>tput</STRONG> sets its exit status to <STRONG>0</STRONG> if the terminal possesses  <EM>cap-</EM>
                <EM>code</EM>, and <STRONG>1</STRONG> if it does not.

       numeric  <STRONG>tput</STRONG>  writes  <EM>cap-code</EM>'s  decimal value to the standard output
                stream if defined (<STRONG>-1</STRONG> if it is not) followed by a newline.

       string   <STRONG>tput</STRONG> writes <EM>cap-code</EM>'s value to the standard output stream  if
                defined, without a trailing newline.

       Before  using  a value returned on the standard output, the application
       should test <STRONG>tput</STRONG>'s exit status to be sure it is 0;  see  section  "EXIT
       STATUS" below.


</PRE><H3><a name="h3-Operands">Operands</a></H3><PRE>
       Generally,  an  operand  is  a  <EM>cap-code</EM>,  a  capability  code from the
       terminal database, or a parameter thereto.  Three others are  specially
       recognized by <STRONG>tput</STRONG>: <STRONG>init</STRONG>, <STRONG>reset</STRONG>, and <STRONG>longname</STRONG>.  Although these resemble
       capability  codes,  they in fact receive special handling; we term them
       "pseudo-capabilities".

       <EM>cap-code</EM>   indicates a capability from the terminal database.

                  If <EM>cap-code</EM> is of string type  and  takes  parameters,  <STRONG>tput</STRONG>
                  interprets  arguments  following <EM>cap-code</EM> as the parameters,
                  up to the (fixed) quantity the capability requires.

                  Most  parameters  are  numeric.    Only   a   few   terminal
                  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="curs_terminfo.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 substitution.

       <STRONG>init</STRONG>       initializes  the  terminal.   If  the  terminal  database is
                  present and an entry for the user's  terminal  type  exists,
                  the following occur.

                  (1)  <STRONG>tput</STRONG>   retrieves  the  terminal's  mode  settings.   It
                       successively tests the file  descriptors  corresponding
                       to

                       <STRONG>o</STRONG>   the standard error stream,

                       <STRONG>o</STRONG>   the standard output stream,

                       <STRONG>o</STRONG>   the standard input stream, and

                       <STRONG>o</STRONG>   <EM>/dev/tty</EM>

                       to  obtain  terminal  settings.  Having retrieved them,
                       <STRONG>tput</STRONG> remembers which  descriptor  to  use  for  further
                       updates.

                  (2)  If  the terminal dimensions cannot be obtained from the
                       operating system, but the environment or terminal  type
                       database   entry   describes  them,  <STRONG>tput</STRONG>  updates  the
                       operating system's notion of them.

                  (3)  <STRONG>tput</STRONG> updates the terminal modes.

                       <STRONG>o</STRONG>   Tab  expansion  is  turned  on  or  off   per   the
                           specification in the entry, and

                       <STRONG>o</STRONG>   if  tabs  are  not expanded, standard tabs (every 8
                           spaces) are set.

                  (4)  If initialization capabilities, detailed in  subsection
                       "Tabs  and Initialization" of <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>, are present,
                       <STRONG>tput</STRONG> writes them to the standard output stream.

                  (5)  <STRONG>tput</STRONG> flushes the standard output stream.

                  If an entry lacks the information  needed  for  an  activity
                  above, that activity is silently skipped.

       <STRONG>reset</STRONG>      re-initializes   the   terminal.    A   reset  differs  from
                  initialization in two ways.

                  (1)  <STRONG>tput</STRONG> sets the terminal modes to a "sane" state,

                       <STRONG>o</STRONG>   enabling canonical ("cooked") and echo modes,

                       <STRONG>o</STRONG>   disabling cbreak and raw modes,

                       <STRONG>o</STRONG>   enabling newline translation, and

                       <STRONG>o</STRONG>   setting  any  special  input  characters  to  their
                           default values.

                  (2)  If  any reset capabilities are defined for the terminal
                       type,  <STRONG>tput</STRONG>  writes  them   to   the   output   stream.
                       Otherwise,   <STRONG>tput</STRONG>   uses   any  defined  initialization
                       capabilities.   Reset  capabilities  are  detailed   in
                       subsection "Tabs and Initialization" of <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.

       <STRONG>longname</STRONG>   A  <EM>terminfo</EM>  entry begins with one or more names by which an
                  application can refer to  the  entry,  before  the  list  of
                  terminal  capabilities.   The  names  are  separated  by "|"
                  characters.  X/Open Curses terms the  last  name  the  "long
                  name", and indicates that it may include blanks.

                  <STRONG>tic</STRONG>  warns  if  the  last  name  does not include blanks, to
                  accommodate old <EM>terminfo</EM> entries that treated the long  name
                  as  an optional feature.  The long name is often referred to
                  as the description field.

                  If the terminal database is present and  an  entry  for  the
                  user's terminal type exists, <STRONG>tput</STRONG> reports its description to
                  the standard output stream, without a trailing newline.  See
                  <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.

       <EM>Note:</EM>  Redirecting  the output of "<STRONG>tput</STRONG> <STRONG>init</STRONG>" or "<STRONG>tput</STRONG> <STRONG>reset</STRONG>" to a file
       will capture only part of their actions.  Changes to the terminal modes
       are not affected by file descriptor  redirection,  since  the  terminal
       modes are altered via <STRONG>ioctl(2)</STRONG>.


</PRE><H3><a name="h3-Aliases">Aliases</a></H3><PRE>
       If  <STRONG>tput</STRONG>  is  invoked  via  link  with any of the names <STRONG>clear</STRONG>, <STRONG>init</STRONG>, or
       <STRONG>reset</STRONG>, it operates as if run with the corresponding (pseudo-)capability
       operand.  For example, executing a link named <STRONG>reset</STRONG> that points to <STRONG>tput</STRONG>
       has the same effect as "<STRONG>tput</STRONG> <STRONG>reset</STRONG>".

       This feature was introduced by <EM>ncurses</EM> 5.2 in 2000.  It is rarely used.

       <STRONG>clear</STRONG>  is a separate program, which is both smaller and more frequently
              executed.

       <STRONG>init</STRONG>   has the same name as another program in widespread use.

       <STRONG>reset</STRONG>  is provided by the  <STRONG><A HREF="tset.1.html">tset(1)</A></STRONG>  utility  (also  via  a  link  named
              <STRONG>reset</STRONG>).


</PRE><H3><a name="h3-Terminal-Size">Terminal Size</a></H3><PRE>
       Besides  the  pseudo-capabilities (such as <STRONG>init</STRONG>), <STRONG>tput</STRONG> treats the <STRONG>lines</STRONG>
       and <STRONG>cols</STRONG> <EM>cap-codes</EM> specially: it may call <STRONG><A HREF="curs_terminfo.3x.html">setupterm(3x)</A></STRONG> to  obtain  the
       terminal size.

       <STRONG>o</STRONG>   First, <STRONG>tput</STRONG> attempts to obtain these capabilities from the terminal
           database.   This generally fails for terminal emulators, which lack
           a fixed window size and thus omit the capabilities.

       <STRONG>o</STRONG>   It then asks the operating system for the  terminal's  size,  which
           generally  works,  unless  the connection is via a serial line that
           does not support "NAWS": negotiations about window size.

       <STRONG>o</STRONG>   Finally, it inspects the environment variables <EM>LINES</EM>  and  <EM>COLUMNS</EM>,
           which may override the terminal size.

       If  the  <STRONG>-T</STRONG>  option is given, <STRONG>tput</STRONG> ignores the environment variables by
       calling  <STRONG>use_tioctl(TRUE)</STRONG>,  relying  upon  the  operating  system  (or,
       ultimately, the terminal database).


</PRE><H2><a name="h2-OPTIONS">OPTIONS</a></H2><PRE>
       <STRONG>-S</STRONG>       retrieves  more  than  one  capability per invocation of <STRONG>tput</STRONG>.
                The capabilities must be passed  to  <STRONG>tput</STRONG>  from  the  standard
                input  stream  instead  of  from the command line (see section
                "EXAMPLES" below).  Only one <EM>cap-code</EM>  is  allowed  per  line.
                The  <STRONG>-S</STRONG>  option  changes  the  meanings  of  the  <STRONG>0</STRONG> and <STRONG>1</STRONG> exit
                statuses (see section "EXIT STATUS" below).

                Some capabilities use string parameters  rather  than  numeric
                ones.   <STRONG>tput</STRONG>  employs  a  built-in  table  and the presence of
                parameters in its input to decide how to interpret  them,  and
                whether to use <STRONG><A HREF="curs_terminfo.3x.html">tparm(3x)</A></STRONG>.

       <STRONG>-T</STRONG> <EM>type</EM>  indicates  the  terminal's  <EM>type</EM>.   Normally  this  option  is
                unnecessary,  because  a  default  is  taken  from  the   <EM>TERM</EM>
                environment variable.  If specified, the environment variables
                <EM>LINES</EM> and <EM>COLUMNS</EM> are also ignored.

       <STRONG>-v</STRONG>       causes <STRONG>tput</STRONG> to operate verbosely, reporting warnings.

       <STRONG>-V</STRONG>       reports the version of <EM>ncurses</EM> associated with <STRONG>tput</STRONG>, and exits
                with a successful status.

       <STRONG>-x</STRONG>       prevents  "<STRONG>tput</STRONG> <STRONG>clear</STRONG>" from attempting to clear the scrollback
                buffer.


</PRE><H2><a name="h2-EXIT-STATUS">EXIT STATUS</a></H2><PRE>
       Normally, one should interpret <STRONG>tput</STRONG>'s exit statuses as follows.

       <STRONG>Status</STRONG>   <STRONG>Meaning</STRONG> <STRONG>When</STRONG> <STRONG>-S</STRONG> <STRONG>Not</STRONG> <STRONG>Specified</STRONG>
       ------------------------------------------------------------------------
       <STRONG>0</STRONG>        Boolean or string capability present
       <STRONG>1</STRONG>        Boolean or numeric capability absent
       <STRONG>2</STRONG>        usage error or no terminal type specified
       <STRONG>3</STRONG>        unrecognized terminal type
       <STRONG>4</STRONG>        unrecognized capability code
       <STRONG>&gt;4</STRONG>       system error (4 + <STRONG>errno</STRONG>)

       When the <STRONG>-S</STRONG> option is used, some statuses change meanings.

       <STRONG>Status</STRONG>   <STRONG>Meaning</STRONG> <STRONG>When</STRONG> <STRONG>-S</STRONG> <STRONG>Specified</STRONG>
       ------------------------------------------------------------------------
       <STRONG>0</STRONG>        all operands interpreted
       <STRONG>1</STRONG>        unused
       <STRONG>4</STRONG>        some operands not interpreted


</PRE><H2><a name="h2-ENVIRONMENT">ENVIRONMENT</a></H2><PRE>
       <STRONG>tput</STRONG> reads up to three environment variables if the <STRONG>-T</STRONG>  option  is  not
       specified.

       <EM>COLUMNS</EM>  specifies the width of the screen in characters.

       <EM>LINES</EM>    specifies the height of the screen in characters.

       <EM>TERM</EM>     denotes  the  terminal  type.  Each terminal type is distinct,
                though many are similar.


</PRE><H2><a name="h2-FILES">FILES</a></H2><PRE>
       <EM>/usr/share/tabset</EM>
              tab stop initialization database

       <EM>/usr/share/terminfo</EM>
              compiled terminal description database


</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
       Over time <EM>ncurses</EM> <STRONG>tput</STRONG> has  differed  from  that  of  System V  in  two
       important respects, one now mostly historical.

       <STRONG>o</STRONG>   "<STRONG>tput</STRONG>  <EM>cap-code</EM>" writes to the standard output, which need not be a
           terminal device.  However, the operands  that  manipulate  terminal
           modes might not use the standard output.

           System V  <EM>tput</EM>'s  <STRONG>init</STRONG>  and  <STRONG>reset</STRONG>  operands use logic from 4.1cBSD
           <EM>tset</EM>,  manipulating  terminal  modes.   It  checks  the  same  file
           descriptors  (and  <EM>/dev/tty</EM>) for association with a terminal device
           as <EM>ncurses</EM> now does, and if none are, finally assumes a  1200  baud
           terminal.  When updating terminal modes, it ignores errors.

           Until  <EM>ncurses</EM>  6.1  (see  section  "HISTORY"  below), <STRONG>tput</STRONG> did not
           modify  terminal  modes.   It  now  employs  a  scheme  similar  to
           System V, using functions shared with <STRONG>tset</STRONG> (and ultimately based on
           4.4BSD  <EM>tset</EM>).  If it is not able to open a terminal (for instance,
           when run by <STRONG>cron(1)</STRONG>), <STRONG>tput</STRONG> exits with an error status.

       <STRONG>o</STRONG>   System V <EM>tput</EM> assumes that  the  type  of  a  <EM>cap-code</EM>  operand  is
           numeric  if all the characters of its value are decimal numbers; if
           they are not, it treats <EM>cap-code</EM> as a string capability.

           Most implementations that provide support for <EM>cap-code</EM> operands use
           the <STRONG><A HREF="curs_terminfo.3x.html">tparm(3x)</A></STRONG> function to expand  its  parameters.   That  function
           expects  a mixture of numeric and string parameters, requiring <STRONG>tput</STRONG>
           to know which type to use.

           <EM>ncurses</EM> <STRONG>tput</STRONG> uses a table to determine the parameter types for  the
           standard  <EM>cap-code</EM>  operands,  and  an internal function to analyze
           nonstandard <EM>cap-code</EM> operands.

           While more reliable than System V's utility, a portability  problem
           is  introduced  by this analysis.  An OpenBSD developer adapted the
           internal library function from <EM>ncurses</EM> to  port  NetBSD's  <EM>termcap</EM>-
           based  <EM>tput</EM> to <EM>terminfo</EM>, and modified it to interpret multiple <EM>cap-</EM>
           <EM>codes</EM> (and parameters) on the command line.  Portable  applications
           should  not  rely  upon  this feature; <EM>ncurses</EM> offers it to support
           applications written specifically for OpenBSD.

       <EM>ncurses</EM>'s implementation of <EM>tput</EM>, unlike others, accepts  both  <EM>termcap</EM>
       and  <EM>terminfo</EM>  <EM>cap-codes</EM>  if  <EM>termcap</EM>  support is compiled in.  In that
       case, however, <EM>termcap</EM> and <EM>terminfo</EM> codes have two ambiguities; <EM>ncurses</EM>
       assumes the <EM>terminfo</EM> code.

       <STRONG>o</STRONG>   The <EM>cap-code</EM> <STRONG>dl</STRONG> means <STRONG>delete_line</STRONG> to <EM>termcap</EM>  but  <STRONG>parm_delete_line</STRONG>
           to <EM>terminfo</EM>.  <EM>termcap</EM> uses the code <STRONG>DL</STRONG> for <STRONG>parm_delete_line</STRONG>.  <EM>term-</EM>
           <EM>info</EM> uses the code <STRONG>dl1</STRONG> for <STRONG>delete_line</STRONG>.

       <STRONG>o</STRONG>   The  <EM>cap-code</EM>  <STRONG>ed</STRONG>  means <STRONG>exit_delete_mode</STRONG> to <EM>termcap</EM> but <STRONG>clr_eos</STRONG> to
           <EM>terminfo</EM>.  <EM>termcap</EM> uses the code <STRONG>cd</STRONG> for <STRONG>clr_eos</STRONG>.  <EM>terminfo</EM> uses the
           code <STRONG>rmdc</STRONG> for <STRONG>exit_delete_mode</STRONG>.

       The  <STRONG>longname</STRONG>  operand,  <STRONG>-S</STRONG>  option,  and  the   parameter-substitution
       features  used in the <STRONG>cup</STRONG> example below, were not supported in AT&amp;T/USL
       <EM>curses</EM> before SVr4 (1989).  Later, 4.3BSD-Reno (1990) added support for
       <STRONG>longname</STRONG>,  and  in  1994,  NetBSD  added  support  for  the  parameter-
       substitution features.

       IEEE   Std   1003.1/The   Open   Group   Base   Specifications  Issue 7
       (POSIX.1-2008) documents only the <STRONG>clear</STRONG>, <STRONG>init</STRONG>, and <STRONG>reset</STRONG>  operands.   A
       few observations of interest arise from that selection.

       <STRONG>o</STRONG>   <EM>ncurses</EM> supports <STRONG>clear</STRONG> as it does any other standard <EM>cap-code</EM>.  The
           others   (<STRONG>init</STRONG>   and   <STRONG>longname</STRONG>)  do  not  correspond  to  terminal
           capabilities.

       <STRONG>o</STRONG>   The <EM>tput</EM> on SVr4-based systems such as Solaris, IRIX64, and  HP-UX,
           as well as others such as AIX and Tru64, also support standard <EM>cap-</EM>
           <EM>code</EM> operands.

       <STRONG>o</STRONG>   A few platforms such as FreeBSD recognize <EM>termcap</EM> codes rather than
           <EM>terminfo</EM> capability codes in their respective <EM>tput</EM> commands.  Since
           2010,  NetBSD's  <EM>tput</EM>  uses  <EM>terminfo</EM> codes.  Before that, it (like
           FreeBSD) recognized <EM>termcap</EM> codes.

           Beginning in 2021, FreeBSD uses <EM>ncurses</EM> <STRONG>tput</STRONG>, configured  for  both
           <EM>terminfo</EM> (tested first) and <EM>termcap</EM> (as a fallback).

       Because (apparently) all <EM>certified</EM> Unix systems support the full set of
       capability  codes,  the  reason  for  documenting only a few may not be
       apparent.

       <STRONG>o</STRONG>   X/Open Curses Issue 7 documents <STRONG>tput</STRONG> differently, with <EM>cap-code</EM> and
           the other features used in this implementation.

       <STRONG>o</STRONG>   That is, there are two standards for <EM>tput</EM>:  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 capability database.

       <STRONG>o</STRONG>   While  it  is  certainly  possible  to write a <EM>tput</EM> program without
           using <EM>curses</EM>, no system with a  <EM>curses</EM>  implementation  provides  a
           <EM>tput</EM> utility that does not also support standard <EM>cap-codes</EM>.

       X/Open   Curses  Issue 7  (2009)  is  the  first  version  to  document
       utilities.  However that part of X/Open Curses does not follow existing
       practice (that is, System V <EM>curses</EM> behavior).

       <STRONG>o</STRONG>   It assigns exit status 4 to "invalid operand", which may  have  the
           same  meaning  as  "unknown  capability".  For instance, the source
           code for Solaris <EM>xcurses</EM> uses the term "invalid" in this case.

       <STRONG>o</STRONG>   It assigns exit status 255  to  a  numeric  variable  that  is  not
           specified in the <EM>terminfo</EM> database.  That likely is a documentation
           error,  mistaking  the  "-1"  written  to  the  standard  output to
           indicate an absent or canceled numeric capability for an (unsigned)
           exit status.

       The various System V implementations (AIX, HP-UX, Solaris) use the same
       exit statuses as <EM>ncurses</EM>.

       NetBSD <EM>curses</EM>  documents  exit  statuses  that  correspond  to  neither
       <EM>ncurses</EM> nor X/Open Curses.


</PRE><H2><a name="h2-HISTORY">HISTORY</a></H2><PRE>
       Bill  Joy  wrote  a  <EM>tput</EM> command during development of 4BSD in October
       1980.  This initial version only cleared the screen, and did  not  ship
       with official distributions.

       System V developed a different <EM>tput</EM> command.

       <STRONG>o</STRONG>   SVr2  (1984) provided a rudimentary <EM>tput</EM> that checked the parameter
           against each capability name and returned the corresponding  value.
           This  version  of  <EM>tput</EM>  did  not  use  <STRONG><A HREF="curs_terminfo.3x.html">tparm(3x)</A></STRONG> for parameterized
           capabilities.

       <STRONG>o</STRONG>   SVr3 (1987) replaced that  with  a  more  extensive  program  whose
           support  for  <STRONG>init</STRONG>  and <STRONG>reset</STRONG> operands (more than half the program)
           incorporated the <STRONG>reset</STRONG> feature of BSD <EM>tset</EM> written by Eric Allman.

       <STRONG>o</STRONG>   SVr4 (1989) added color initialization  by  using  the  <STRONG>orig_colors</STRONG>
           (<STRONG>oc</STRONG>) and <STRONG>orig_pair</STRONG> (<STRONG>op</STRONG>) capabilities in its <STRONG>init</STRONG> logic.

       Keith  Bostic  refactored  BSD <EM>tput</EM> for shipment in 4.3BSD-Reno (1990),
       making it follow the interface  of  System V  <EM>tput</EM>  by  accepting  some
       parameters  named  for  <EM>terminfo</EM>  (pseudo-)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> codes for other capabilities.  Also, Bostic's BSD
       <EM>tput</EM> did not modify the terminal modes as  the  earlier  BSD  <EM>tset</EM>  had
       done.  At the same time, Bostic added a shell script named "clear" that
       used  <EM>tput</EM>  to  clear  the  screen.   These  became  the  "modern"  BSD
       implementation of <EM>tput</EM>.

       The origin of <EM>ncurses</EM> <STRONG>tput</STRONG> lies outside both System V and BSD, in  Ross
       Ridge's  <EM>mytinfo</EM>  package,  published  on <EM>comp.sources.unix</EM> in December
       1992.  Ridge's program made more  sophisticated  use  of  the  terminal
       capabilities than the BSD program.  Eric Raymond used that <EM>tput</EM> program
       (and  other  parts  of <EM>mytinfo</EM>) in <EM>ncurses</EM> in June 1995.  Incorporating
       the portions dealing with terminal capabilities almost without  change,
       Raymond  made  improvements  to  the  way  command-line parameters were
       handled.

       Before <EM>ncurses</EM> 6.1 (2018), its <STRONG>tset</STRONG> and <STRONG>tput</STRONG> utilities differed.

       <STRONG>o</STRONG>   <STRONG>tset</STRONG> was more effective, resetting the terminal's modes and special
           input characters.

       <STRONG>o</STRONG>   On the other hand, <STRONG>tset</STRONG>'s repertoire of terminal  capabilities  for
           resetting the terminal was more limited; it had only equivalents of
           <STRONG>reset_1string</STRONG>  (<STRONG>rs1</STRONG>), <STRONG>reset_2string</STRONG> (<STRONG>rs2</STRONG>), and <STRONG>reset_file</STRONG> (<STRONG>rf</STRONG>), and
           not the tab stop and margin update features of <STRONG>tput</STRONG>.

       The <EM>reset</EM> program is traditionally an alias for <STRONG>tset</STRONG> due to its ability
       to reset the terminal's modes and special input characters.

       As of <EM>ncurses</EM> 6.1,  the  "reset"  features  of  the  two  programs  are
       (mostly) the same.  Two minor differences remain.

       <STRONG>o</STRONG>   When  issuing  a  reset, the <STRONG>tset</STRONG> program checks whether the device
           appears to be a pseudoterminal (as might  be  used  by  a  terminal
           emulator program), and, if it does not, waits one second in case it
           is communicating with a hardware terminal.

       <STRONG>o</STRONG>   The  two  programs  write  the  terminal  initialization strings to
           different streams; that is, standard error for  <STRONG>tset</STRONG>  and  standard
           output for <STRONG>tput</STRONG>.


</PRE><H2><a name="h2-EXAMPLES">EXAMPLES</a></H2><PRE>
       <STRONG>tput</STRONG> <STRONG>init</STRONG>
              Initialize the terminal according to the type of terminal in the
              <EM>TERM</EM>  environment  variable.   If  the  system does not reliably
              initialize the terminal upon login, this command can be included
              in <EM>$HOME/.profile</EM> after exporting the <EM>TERM</EM> environment variable.

       <STRONG>tput</STRONG> <STRONG>-T5620</STRONG> <STRONG>reset</STRONG>
              Reset an AT&amp;T 5620 terminal, overriding the terminal type in the
              <EM>TERM</EM> environment variable.

       <STRONG>tput</STRONG> <STRONG>cnorm</STRONG>
              Set cursor to normal visibility.

       <STRONG>tput</STRONG> <STRONG>home</STRONG>
              Move the cursor to line 0, column 0: the upper  left  corner  of
              the screen, usually known as the "home" cursor position.

       <STRONG>tput</STRONG> <STRONG>clear</STRONG>
              Clear  the  screen: write the <STRONG>clear_screen</STRONG> capability's value to
              the standard output stream.

       <STRONG>tput</STRONG> <STRONG>cols</STRONG>
              Report the number of columns used by the current terminal type.

       <STRONG>tput</STRONG> <STRONG>-Tadm3a</STRONG> <STRONG>cols</STRONG>
              Report the number of columns used by an ADM-3A terminal.

       <STRONG>strong=`tput</STRONG> <STRONG>smso`</STRONG> <STRONG>normal=`tput</STRONG> <STRONG>rmso`</STRONG>
              Set shell variables to capability values: <STRONG>strong</STRONG> and <STRONG>normal</STRONG>,  to
              begin  and  end,  respectively, stand-out mode for the terminal.
              One might use these to present a prompt.

                     printf "${strong}Username:${normal} "

       <STRONG>tput</STRONG> <STRONG>hc</STRONG>
              Indicate via exit status whether the terminal  is  a  hard  copy
              device.

       <STRONG>tput</STRONG> <STRONG>cup</STRONG> <STRONG>23</STRONG> <STRONG>4</STRONG>
              Move the cursor to line 23, column 4.

       <STRONG>tput</STRONG> <STRONG>cup</STRONG>
              Report  the  value  of the <STRONG>cursor_address</STRONG> (<STRONG>cup</STRONG>) capability (used
              for cursor movement), with no parameters substituted.

       <STRONG>tput</STRONG> <STRONG>longname</STRONG>
              Report the <EM>terminfo</EM> database's description of the terminal  type
              specified in the <EM>TERM</EM> environment variable.

       <STRONG>tput</STRONG> <STRONG>-S</STRONG>
              Process  multiple capabilities.  The <STRONG>-S</STRONG> option can be profitably
              used with a shell "here document".

              $ <STRONG>tput</STRONG> <STRONG>-S</STRONG> <STRONG>&lt;&lt;!</STRONG>
              &gt; <STRONG>clear</STRONG>
              &gt; <STRONG>cup</STRONG> <STRONG>10</STRONG> <STRONG>10</STRONG>
              &gt; <STRONG>bold</STRONG>
              &gt; <STRONG>!</STRONG>

              The foregoing clears the screen, moves the  cursor  to  position
              (10, 10) and turns on bold (extra bright) mode.

       <STRONG>tput</STRONG> <STRONG>clear</STRONG> <STRONG>cup</STRONG> <STRONG>10</STRONG> <STRONG>10</STRONG> <STRONG>bold</STRONG>
              Perform the same actions as the foregoing "<STRONG>tput</STRONG> <STRONG>-S</STRONG>" example.


</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>,
       <STRONG><A HREF="user_caps.5.html">user_caps(5)</A></STRONG>

ncurses 6.6                       2025-11-11                           <STRONG><A HREF="tput.1.html">tput(1)</A></STRONG>
</PRE>
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<li><a href="#h3-Operands">Operands</a></li>
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