NetBSD/usr.bin/tput/tput.1

.\"	$NetBSD: tput.1,v 1.13 2004/03/29 20:56:24 jdc Exp $
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.\"     @(#)tput.1	8.2 (Berkeley) 3/19/94
.\"
.Dd March 29, 2004
.Dt TPUT 1
.Os
.Sh NAME
.Nm tput ,
.Nm clear
.Nd terminal capability interface
.Sh SYNOPSIS
.Nm
.Op Fl T Ar term
.Ar attribute
.Op Ar attribute-args
.Ar ...
.Sh DESCRIPTION
.Nm
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 .
If not specified,
.Nm
retrieves the
.Dq Ev TERM
variable from the environment.
.El
.Pp
.Nm
outputs a string if the
.Ar attribute
is of type string; a number if it is of type integer.
Otherwise,
.Nm
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 5
.Dq cl
sequence).
.It init
Initialize the terminal (the
.Xr termcap 5
.Dq is
sequence).
.It longname
Print the descriptive name of the user's terminal type.
.It reset
Reset the terminal (the
.Xr termcap 5
.Dq rs
sequence).
.El
.Sh EXIT STATUS
The exit status of
.Nm
is based on the last attribute specified.
If the attribute is of type string or of type integer,
.Nm
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
exits 0 if the terminal has this attribute, and 1 if it does not.
.Nm
exits 2 if any error occurred.
.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
.El
.Sh SEE ALSO
.Xr termcap 3 ,
.Xr termcap 5
.Sh HISTORY
The
.Nm
command appears in
.Bx 4.4 .
.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.