NetBSD/usr.bin/tput/tput.1

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.\" $NetBSD: tput.1,v 1.13 2004/03/29 20:56:24 jdc Exp $
.\"
.\" Copyright (c) 1989, 1990, 1993
.\" The Regents of the University of California. All rights reserved.
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.\"
.\" 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. Neither the name of the University nor the names of its contributors
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.\" 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
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" @(#)tput.1 8.2 (Berkeley) 3/19/94
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.\"
.Dd March 29, 2004
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.Dt TPUT 1
.Os
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.Sh NAME
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.Nm tput ,
.Nm clear
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.Nd terminal capability interface
.Sh SYNOPSIS
.Nm
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.Op Fl T Ar term
.Ar attribute
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.Op Ar attribute-args
.Ar ...
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.Sh DESCRIPTION
.Nm
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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 5
database, for example,
.Dq vt100
or
.Dq xterm .
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If not specified,
.Nm
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retrieves the
.Dq Ev TERM
variable from the environment.
.El
.Pp
.Nm
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outputs a string if the
.Ar attribute
is of type string; a number if it is of type integer.
Otherwise,
.Nm
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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.
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.Pp
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The following special attributes are available:
.Bl -tag -width Ar
.It clear
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Clear the screen (the
.Xr termcap 5
.Dq cl
sequence).
.It init
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Initialize the terminal (the
.Xr termcap 5
.Dq is
sequence).
.It longname
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Print the descriptive name of the user's terminal type.
.It reset
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Reset the terminal (the
.Xr termcap 5
.Dq rs
sequence).
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.El
.Sh EXIT STATUS
The exit status of
.Nm
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is based on the last attribute specified.
If the attribute is of type string or of type integer,
.Nm
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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
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exits 0 if the terminal has this attribute, and 1 if it does not.
.Nm
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exits 2 if any error occurred.
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.Sh EXAMPLES
.Bl -tag -width "tput cm 6 11 DC 6" -compact
.It Li "tput cl cm 5 10"
clear the screen and goto line 5 column 10
.Pp
.It Li "tput cm 6 11 DC 6"
goto line 6 column 11 and delete 6 characters
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.El
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.Sh SEE ALSO
.Xr termcap 3 ,
.Xr termcap 5
.Sh HISTORY
The
.Nm
command appears in
.Bx 4.4 .
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.Sh BUGS
.Nm
can't really distinguish between different types of attributes.
.Pp
Not all termcap entries contain the reset sequence, so using the init
sequence may be more useful.