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.\" Copyright (c) 1989, 1990, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" @(#)tput.1 8.2 (Berkeley) 3/19/94
.\"
.Dd March 19, 1994
.Dt TPUT 1
.Os BSD 4.4
.Sh NAME
.Nm tput
.Nd terminal capability interface
.Sh SYNOPSIS
.Nm tput
.Op Fl T Ar term
.Ar attribute
.Sh DESCRIPTION
.Nm Tput
makes terminal-dependent information available to users or shell
applications.
The options are as follows:
.Bl -tag -width Ds
.It Fl T
The terminal name as specified in the
.Xr termcap
database, for example, ``vt100'' or ``xterm''.
If not specified,
.Nm tput
retrieves the
.Dq Ev TERM
variable from the environment.
.El
.Pp
.Nm Tput
outputs a string if the
.Ar attribute
is of type string; a number if it is of type integer.
Otherwise,
.Nm tput
exits 0 if the terminal has the capability and 1 if it does not,
without further action.
.Pp
If the
.Ar attribute
is of type string, and takes arguments (e.g. cursor movement,
the termcap
.Dq cm
sequence) the arguments are taken from the command line immediately
following the attribute.
.Pp
The following special attributes are available:
.Bl -tag -width Ar
.It clear
Clear the screen (the
.Xr termcap
``cl'' sequence).
.It init
Initialize the terminal (the
.Xr termcap
``is'' sequence).
.It longname
Print the descriptive name of the user's terminal type.
.It reset
Reset the terminal (the
.Xr termcap
``rs'' sequence).
.Sh DIAGNOSTICS
The exit value of
.Nm tput
is based on the last attribute specified.
If the attribute is of type string or of type integer,
.Nm tput
exits 0 if the attribute is defined for this terminal type and 1
if it is not.
If the attribute is of type boolean,
.Nm tput
exits 0 if the terminal has this attribute, and 1 if it does not.
.Nm Tput
exits 2 if any error occurred.
.Sh SEE ALSO
.Xr termcap 3 ,
.Xr termcap 5
.Sh BUGS
.Nm Tput
can't really distinguish between different types of attributes.
.Sh HISTORY
The
.Nm
command appears in
.Bx 4.4 .
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