tub is a user-mode tool to support large dynamic arrays (up to 2.8GB or so) yet still use shared libraries and dynamic linking under Linux on x86. It works around TASK_UNMAPPED_BASE being a system-wide constant instead of an inherited per-process parameter controlled by setrlimit/getrlimit.
TUIpeer works with the TUIAWT Java package, and together they provide a TUI (Text User Interface) look and feel for Java 1.0 and 1.1 applications. In addition, it supports multiple instances of java.awt.Toolkit, a prerequisite for a multi-user JVM. TUIAWT works by sending peer commands and receiving user interface events to and from the remote peer program. Communication with the remote peer program takes place over a socket connection.
tuitest is a tool to create and run automated tests of text user interfaces. It is meant as a complement to the widespread use of unit tests, and uses concepts known from GUI testing tools with the difference that it applies them specifically to text- and terminal-based user interfaces. It consists of a recorder that records the interaction with an application under tests and generates a Ruby script that replays the same interaction, optionally with the same timing. Ruby replaying is supported through a native Ruby module.
Tumble converts one or more TIFF (B&W only) and JPEG files into a PDF file. It was developed primarily for use with scanned images. B&W images will be encoded with Group 4 fax (T.6) lossless compression. JPEG images are embedded as-is. Tumble supports multi-page TIFF files, and can generate PDF outline entries (bookmarks) based on the file name and/or the page number.
tunctl is a small tool for controlling Linux TUN/TAP devices. TUN/TAP devices are virtual network devices where software emulates the wire. With the help of tunctl, such virtual devices can be pre-created and assigned to non-root users for later use, e.g. in virtualization or emulation setups. Many other applications of TUN/TAP devices exist.