Zenity is a tool that allows you to display Gtk+ dialog boxes from the command line and through shell scripts. It is similar to gdialog, but is intended to be saner. It comes from the same family as dialog, Xdialog, and cdialog, but it surpasses those projects by having a cooler name.
cw is a non-intrusive real-time ANSI color wrapper for common Unix-based commands. It is designed to simulate the environment of the commands being executed, so that if a person types 'du', 'df', 'ping', etc. in their shell it will automatically color the output in real-time according to a definition file containing the color format desired. It has support for wildcard match coloring, tokenized coloring, headers/footers, case scenario coloring, command-line- dependent definition coloring, and includes over 50 pre- made definition files.
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.
ded, the directory editor, allows you to navigate multiple file lists or a directory tree, viewing or changing file attributes rapidly. In addition to conventional file information, it operates on files' RCS or SCCS archives, making it useful for source control as well as system administration. It is curses-based.
phpRemoteShell is an all-in-one Web application to manage servers remotely. It contains a full-featured file manager, the ability to execute shell commands or code written for PHP, SQL, or LDAP, a crontab manager, and a zombie manager. It can also host itself into existing files and auto-deploy during their execution. In case it has been previously encrypted, it is able to self-decrypt on the fly.
ggiterm is a software terminal emulator like xterm. However instead of X, it uses the GGI system for its rendering, which allows it to be displayed on anything from a framebuffer to multi-screens across networked hosts (including ordinary X sessions). It features multiple font formats, anti-aliasing, vt100 compatibility, and full internationalization.
OneFinger is a general-purpose GUI for composing CLI commands with the mouse. Although entirely graphical, it does not attempt to hide the underlying CLI language. It increases your productivity over classical hand-typing by caching commands typed into terminals, which tend to be highly repetitive. Repeated commands can be selected from a list, ordered by last usage time. It includes an integrated file browser that helps you insert filenames without typing them. and allows you to see only those programs that make sense with a given file.