TPUT(1)

NAME
tput, clear - terminal capability interface

SYNOPSIS
tput [-T term] attribute
clear

DESCRIPTION
The tput command makes terminal-dependent information available to users or shell applications. When invoked as the clear utility, the screen will be cleared as if
    tput clear
had been executed. The options to tput are as follows:

-T  The terminal name as specified in the termcap(5) database, for example, “vt100” or “xterm”. If not specified, tput retrieves the “TERM” variable from the environment.

The tput command outputs a string if the attribute is of type string; a number if it is of type integer. Otherwise, tput exits 0 if the terminal has the capability and 1 if it does not, without further action.

If the attribute is of type string, and takes arguments (e.g. cursor movement, the termcap “cm” sequence) the arguments are taken from the command line immediately following the attribute.

The following special attributes are available:

clear
    Clear the screen (the termcap(5) “cl” sequence).

init
    Initialize the terminal (the termcap(5) “is” sequence).

longname
    Print the descriptive name of the user's terminal type.

reset
    Reset the terminal (the termcap(5) “rs” sequence).

EXIT STATUS
The exit value of tput is based on the last attribute specified. If the attribute is of type string or of type integer, 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, tput exits 0 if the terminal has this attribute, and 1 if it does not. The tput command exits 2 if any error occurred.

SEE ALSO
termcap(5), terminfo(5)

HISTORY
The tput command appeared in 4.4BSD.

BUGS
The tput command can't really distinguish between different types of attributes.

Some termcap entries depend upon having a ‘%’ in them that is just a ‘%’ and nothing more. Right now we just warn about them if they don't have a valid type declaration. These warnings are sent to stderr.