rsync is a replacement for rcp (and scp) that has many more features. It uses the "rsync algorithm" which provides a very fast method for remote files into sync. It does this by sending just the differences in the files across the link, without requiring that both sets of files are present at one of the ends of the link beforehand.
ADTPro transfers disks to and from Apple II and Apple /// computers and the modern world using any of these communications methods: serial/USB, UDP via the Uthernet or LANceGS Ethernet cards, or audio via the Apple's cassette ports. ADTPro has comprehensive bootstrapping support for otherwise diskless Apple IIs. The home page includes extensive tutorials for getting started.
BitRock InstallBuilder allows you to create easy-to-use multiplatform installers for Linux (x86/PPC/s390/x86_64/Itanium), Windows, Mac OS X, FreeBSD, OpenBSD, Solaris (x86/Sparc), IRIX, AIX, and HP-UX applications. The generated application installers have a native look-and-feel and no external dependencies, and can be run in GUI, text, and unattended modes. In addition to self-contained installers, the installation tool is also able to generate standalone RPM packages.
zlib is designed to be a free, general-purpose, legally unencumbered, lossless data-compression library for use on virtually any computer hardware and operating system. The zlib data format is itself portable across platforms. Unlike the LZW compression method used in Unix compress(1), the compression method currently used in zlib essentially never expands the data. (LZW can double or triple the file size in extreme cases.) zlib's memory footprint is also independent of the input data and can be reduced, if necessary, at some cost in compression.
DarGUI is a graphical frontend for the Disk ARchiving utility (DAR) that aims to make it easier and quicker to perform common backup tasks using DAR. It uses the GTK+ library, which is installed on most Linux distributions, so usually the only additional dependency is DAR. DarGUI aims to complement and enhance the command line features of DAR rather than conceal them, and to help users to learn how DAR works so that they can use it from the command line when necessary. It is written in Pascal using FreePascal and the Lazarus IDE.
Apptools is a collection of programs for accessing Applix 1616/OS disk images. It is similar to 'mtools' and 'cpmtools' for MS-DOS and CP/M disks. The tools have been tested on Applix 1616/OS floppy disk images, but should work on hard disk images. The tools are limited to reading and only work with raw disk images. The collection includes programs for listing, copying, displaying, and reporting, and all tools allow recursive and wildcard operations.