Apache Commons VFS utilities such as a bridge to the Apache Mina FTP Server, a bridge to the Apache Mina SSHD / SCP / SFTP server and a scriptable Java Shell / Console providing a Command Line Interface with VFS file system commands and operations.
System calls command line utilties for Linux and all POSIX based operating systems. Allows direct command line access to many popular kernel system calls in text format. Makes a great internals teaching tool for operating systems.
diff2html is a bash 3.2 script that uses the output from diff(1) to create an html file with color comparison of file1 to file2. The html file (optionally) formats using CSS. Hyperlinks are provided to jump to the changed lines.