basE91 is an advanced method for encoding binary data as ASCII characters. It is similar to UUencode or base64, but is more efficient. The overhead produced by basE91 depends on the input data. It amounts at most to 23% (versus 33% for base64) and can range down to 14%, which typically occurs on 0-byte blocks. This makes basE91 very useful for transferring larger files over binary unsafe connections like e-mail or terminal lines.
PHP Shell is a shell wrapped in a PHP script. It's a tool you can use to execute arbiritary shell-commands or browse the filesystem on your remote Web server. This replaces, to a degree, a normal telnet-connection. You can use it for administration and maintenance of your Web site using commands like ps, free, du, df, and more.
AbulÉdu is a Ubuntu-based distribution for primary schools. It is currently in French but most of the tools can be translated. An AbulÉdu server can handle Mac, Windows (samba), GNU/Linux and X terminal (with LTSP) clients. The server acts as a central gateway for Web, mail, and printing, and facilitates the management of classes, pupils, and teachers. Everybody can publish Web pages on an intranet using Apache and all administration tasks are performed using a browser. The result is that a teacher who is not a computer specialist can install and manage a school network.
PSHAW is a pseudo command prompt for accessing a machine remotely using only a Web browser. It cannot run interactive programs. It can only run programs that run, spit out text (or not), and then quit. There is a handy drop-down box of previously run commands. The page never reloads thanks to AJAX.
PHPsh allows you to have shell commands run on your behalf by Web servers that serve PHP pages, and solves these issues and more. It is a simplified version of the shell that allows you to execute arbitrary commands remotely through PHP. It is a handy way to run simple commands and maintain a history of executed commands, and a helpful environment that allows you to browse the filesystem and fetch or upload files.