tput(1) -- Linux man page



tput, reset - initialize a terminal or query terminfo database  


tput [-Ttype] capname [parms ... ]
tput [-Ttype] init
tput [-Ttype] reset
tput [-Ttype] longname
tput -S <<
tput -V


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(1).
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.
indicates the attribute from the terminfo database. When termcap support is compiled in, the termcap name for the attribute is also accepted.
If the attribute is a string that takes parameters, the arguments parms will be instantiated into the string. An all-numeric argument will be passed to the attribute as a number.
Only a few terminfo capabilities require string parameters; tput uses a table to decide which to pass as strings. Normally tput uses tparm (3X) to perform the substitution. If no parameters are given for the attribute, tput writes the string without performing the substitution.
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 boolean and string exit codes (see the EXIT CODES section).
Again, tput uses a table and the presence of parameters in its input to decide whether to use tparm (3X), and how to interpret the parameters.
reports the version of ncurses which was used in this program, and exits.
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) specified 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.
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.
If the terminfo database is present and an entry for the user's terminal exists (see -Ttype above), then the long name of the terminal 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.  


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(5) 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 position).
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 cup
Send the terminfo string for cursor-movement, with no parameters substituted.
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. It clears the screen, moves the cursor to position 10, 10 and turns on bold (extra bright) mode. The list is terminated by an exclamation mark (!) on a line by itself.


compiled terminal description database
curses(3X) header file
terminfo header file
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(5)


If the -S option is used, tput checks for errors from each line, and if any errors are found, will set the exit code to 4 plus the number of lines with errors. If no errors are found, the exit code is 0. 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 the -S option is not used, the exit code depends on the type of capname:
a value of 0 is set for TRUE and 1 for FALSE.
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 (nothing is written to standard output).
a value of 0 is always set, whether or not capname is defined for this terminal type. To determine if capname is defined for this terminal type, the user must test the value written to standard output. A value of -1 means that capname is not defined for this terminal type.
reset or init may fail to find their respective files. In that case, the exit code is set to 4 + errno.

Any other exit code indicates an error; see the DIAGNOSTICS section.  


tput prints the following error messages and sets the corresponding exit codes.

exit codeerror message