tput(1) [netbsd man page]
TPUT(1) BSD General Commands Manual TPUT(1) NAME
tput, clear -- terminal capability interface SYNOPSIS
tput [-T term] attribute [attribute-args] ... DESCRIPTION
tput makes terminal-dependent information available to users or shell applications. The options are as follows: -T The terminal name as specified in the terminfo(5) database, for example, ``vt100'' or ``xterm''. If not specified, tput retrieves the ``TERM'' variable from the environment. tput 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 terminfo ``cup'' sequence) the arguments are taken from the command line immediately following the attribute. The following special attributes are available: clear Clear the screen (the terminfo(5) ``cl'' sequence). init Initialize the terminal (the terminfo(5) ``is2'' sequence). longname Print the descriptive name of the user's terminal type. reset Reset the terminal (the terminfo(5) ``rs1, rs2, rs3'' and ``rf'' sequence). EXIT STATUS
The exit status 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. tput exits 2 if any error occurred. EXAMPLES
tput cl cm 5 10 clear the screen and goto line 5 column 10 tput cm 6 11 DC 6 goto line 6 column 11 and delete 6 characters SEE ALSO
termcap(3), termcap(5) HISTORY
The tput command appears in 4.4BSD. BUGS
tput can't really distinguish between different types of attributes. Not all terminfo entries contain the reset sequence, so using the init sequence may be more useful. BSD
September 29, 2009 BSD
Check Out this Related Man Page
tput(1) General Commands Manual tput(1) NAME
tput, reset - initialize a terminal or query terminfo database SYNOPSIS
tput [-Ttype] capname [parms ... ] tput [-Ttype] init tput [-Ttype] reset tput [-Ttype] longname tput -S << tput -V DESCRIPTION
The tput utility uses the terminfo database to make the values of terminal-dependent capabilities and information available to the shell (see sh(1)), to initialize or reset the terminal, or return the long name of the requested terminal type. tput outputs a string if the attribute (capability name) is of type string, or an integer if the attribute is of type integer. If the attribute is of type boolean, tput simply sets the exit code (0 for TRUE if the terminal has the capability, 1 for FALSE if it does not), and produces no output. Before using a value returned on standard output, the user should test the exit code [$?, see sh(1)] to be sure it is 0. (See the EXIT CODES and DIAGNOSTICS sections.) For a complete list of capabilities and the capname associated with each, see terminfo(5). -Ttype indicates the type of terminal. Normally this option is unnecessary, because the default is taken from the environment variable TERM. If -T is specified, then the shell variables LINES and COLUMNS will be ignored,and the operating system will not be queried for the actual screen size. capname indicates the attribute from the terminfo database. When termcap support is compiled in, the termcap name for the attribute is also accepted. parms If the attribute is a string that takes parameters, the arguments parms will be instantiated into the string. An all numeric argu- ment will be passed to the attribute as a number. -S allows more than one capability per invocation of tput. The capabilities must be passed to tput from the standard input instead of from the command line (see example). Only one capname is allowed per line. The -S option changes the meaning of the 0 and 1 bool- ean and string exit codes (see the EXIT CODES section). -V reports the version of ncurses which was used in this program, and exits. init If the terminfo database is present and an entry for the user's terminal exists (see -Ttype, above), the following will occur:(1) if present, the terminal's initialization strings will be output (is1, is2, is3, if, iprog), (2) any delays (e.g., newline) speci- fied in the entry will be set in the tty driver, (3) tabs expansion will be turned on or off according to the specification in the entry, and(4) if tabs are not expanded, standard tabs will be set (every 8 spaces). If an entry does not contain the information needed for any of the four above activities, that activity will silently be skipped. reset Instead of putting out initialization strings, the terminal's reset strings will be output if present (rs1, rs2, rs3, rf). If the reset strings are not present, but initialization strings are, the initialization strings will be output. Otherwise, reset acts identically to init. longname If the terminfo database is present and an entry for the user's terminal exists (see -Ttype above), then the long name of the termi- nal will be put out. The long name is the last name in the first line of the terminal's description in the terminfo database [see term(5)]. If tput is invoked by a link named reset, this has the same effect as tput reset. See tset for comparison, which has similar behavior. EXAMPLES
tput init Initialize the terminal according to the type of terminal in the environmental variable TERM. This command should be included in everyone's .profile after the environmental variable TERM has been exported, as illustrated on the profile(4) manual page. tput -T5620 reset Reset an AT&T 5620 terminal, overriding the type of terminal in the environmental variable TERM. tput cup 0 0 Send the sequence to move the cursor to row 0, column 0 (the upper left corner of the screen, usually known as the "home" cursor posi- tion). tput clear Echo the clear-screen sequence for the current terminal. tput cols Print the number of columns for the current terminal. tput -T450 cols Print the number of columns for the 450 terminal. bold=`tput smso` offbold=`tput rmso` Set the shell variables bold, to begin stand-out mode sequence, and offbold, to end standout mode sequence, for the current terminal. This might be followed by a prompt: echo "${bold}Please type in your name: ${offbold}c" tput hc Set exit code to indicate if the current terminal is a hard copy terminal. tput cup 23 4 Send the sequence to move the cursor to row 23, column 4. tput longname Print the long name from the terminfo database for the type of terminal specified in the environmental variable TERM. tput -S <<! > clear > cup 10 10 > bold > ! This example shows tput processing several capabilities in one invocation. This example clears the screen, moves the cursor to posi- tion 10, 10 and turns on bold (extra bright) mode. The list is terminated by an exclamation mark (!) on a line by itself. FILES
/usr/share/terminfo compiled terminal description database /usr/include/curses.h curses(3X) header file /usr/include/term.h terminfo header file /usr/share/tabset/* tab settings for some terminals, in a format appropriate to be output to the terminal (escape sequences that set margins and tabs); for more information, see the "Tabs and Initialization" section of terminfo(4) SEE ALSO
clear(1), stty(1), tabs(5). profile(5), terminfo(4) in the System Administrator's Reference Manual. Chapter 10 of the Programmer's Guide. EXIT CODES
If capname is of type boolean, a value of 0 is set for TRUE and 1 for FALSE unless the -S option is used. If capname is of type string, a value of 0 is set if the capname is defined for this terminal type (the value of capname is returned on standard output); a value of 1 is set if capname is not defined for this terminal type (a null value is returned on standard output). If capname is of type boolean or string and the -S option is used, a value of 0 is returned to indicate that all lines were successful. No indication of which line failed can be given so exit code 1 will never appear. Exit codes 2, 3, and 4 retain their usual interpretation. If capname is of type integer, a value of 0 is always set, whether or not capname is defined for this terminal type. To determine if cap- name is defined for this terminal type, the user must test the value of standard output. A value of -1 means that capname is not defined for this terminal type. Any other exit code indicates an error; see the DIAGNOSTICS section. DIAGNOSTICS
tput prints the following error messages and sets the corresponding exit codes. exit code error message --------------------------------------------------------------------- 0 (capname is a numeric variable that is not specified in the terminfo(5) database for this terminal type, e.g. tput -T450 lines and tput -T2621 xmc) 1 no error message is printed, see the EXIT CODES section. 2 usage error 3 unknown terminal type or no terminfo database 4 unknown terminfo capability capname --------------------------------------------------------------------- PORTABILITY
The longname and -S options, and the parameter-substitution features used in the cup example, are not supported in BSD curses or in AT&T/USL curses before SVr4. tput(1)