x11vnc allows one to remotely view and interact with real X displays (i.e. a display corresponding to a physical monitor, keyboard, and mouse) with any VNC viewer. It is designed to be compatible with all Unix variants and Mac OS X, and depends on a small set of standard libraries. It supports SSL/TLS and VeNCrypt encryption, Unix password logins, single port access, Zeroconf, file transfer, and UltraVNC extensions. It is part of the LibVNCServer project.
Viewglob is a filesystem visualization add-on for Bash and Zsh. It tracks the command line and environment of any number of interactive shells (local and remote). A graphical display follows the currently active terminal, listing the contents of directories relevant to its shell and highlighting file selections and potential name completions dynamically.
Bashrun provides a powerful application launcher by running a specialized bash session in a small terminal window, conveniently providing bash features like tab completion and history. Additional features include user-configurable rules for automatically launching certain commands in a new terminal window, looking up manual and info pages, performing dict and Google queries, defining bookmarks for Web pages, or piping command output to the clipboard. Users can add more functionality by defining arbitrary rules for rewriting command lines based on regular expression matches and file test operators. This makes new features like file associations or Web shortcuts trivial to implement.