tput

The tput utility shall display terminal-dependent information. The manner in which this information is retrieved is unspecified. The information displayed shall clear the terminal screen, initialize the user's terminal, or reset the user's terminal, depending on the operand given. The exact consequences of displaying this information are unspecified. Indicate the type of terminal. If this option is not supplied and the TERM variable is unset or null, an unspecified default terminal type shall be used. The setting of type shall take precedence over the value in TERM. Display the sequence that initializes the user's terminal in an implementation-defined manner. Display the sequence that resets the user's terminal in an implementation-defined manner. Provide a default value for the internationalization variables that are unset or null. (See XBD Internationalization Variables for the precedence of internationalization variables used to determine the values of locale categories.) If set to a non-empty string value, override the values of all the other internationalization variables. Determine the locale that should be used to affect the format and contents of diagnostic messages written to standard error. [XSI) ] ![[Option Start]]( Determine the location of message catalogs for the processing of LC MESSAGES. ![[Option End]]( If one of the operands is not available for the terminal, tput continues processing the remaining operands. Some terminals use control characters to perform the stated functions, and on such terminals it might make sense to use tput to store the initialization strings in a file or environment variable for later use. However, because other terminals might rely on system calls to do this work, the standard output cannot be used in a portable manner, such as the following non-portable constructs: The only features chosen were those that were likely to be used by human users interacting with a terminal. Specifying the full terminfo set was not considered desirable, but the standard developers did not want to select among operands. This volume of POSIX.1-2017 does not attempt to provide applications with sophisticated terminal handling capabilities, as that falls outside of its assigned scope and intersects with the responsibilities of other standards bodies. This utility is marked as part of the User Portability Utilities option. The tput utility is moved from the User Portability Utilities option to the Base. User Portability Utilities is now an option for interactive utilities.