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Kfilecoder - KDE file encryption on Linux
Kfilecoder is a file encryption utility with compression ( bzip or gzip compression ). It use the PC1 algorithm with 128-bit keys. One random key per file in the archive. Source code in C++ for Linux/KDE can be download freely.
kfilecoder.sourceforge.net/

Complite File Comparison Family
True word-by-word comparison utilities for programming language source, ASCII text and data files. Native versions available for OS/2, Windows NT, and DOS.
world.std.com/

File SyncForce
Perform file synchronization between PCs, laptops, hard drives, and client and server networks. Automatically detect which files have changed within a given directory and synchronize those changes to a destination directory, and log the files that have been synchronized.
www.objectforce.com/

Goetz's File Splitter
Split a large file into smaller files to fit on floppies or e-mail attachments. Command-line tool.
www.lawrencegoetz.com/

File Split Program - Datei-Zerstückelung
Splits a large file into smaller pieces, uses Cyclic Redundancy Check (CRC), and auto-concatenate. [Bilingual site German/English]
black_giant.tripod.com/

Coda File System
CMU's advanced networked File System
www.coda.cs.cmu.edu/

ARLA
Arla is a free AFS implementation
www.stacken.kth.se/

ZTree File Manager
ZTreeWin and ZTreeBold are native 32bit text-mode file/directory managers for Windows (95/98/Me/NT/2K/XP) and OS/2 respectively, modelled closely on the text-mode file-manager XTree Gold. Shareware.
www.ztree.com/

File Commander
Text mode Norton Commander style file manager, shareware for OS/2 and Win32.
silk.apana.org.au/

F: Freeware Multi-platform File Manager
Text based, downloads for OS/2, Win32, Linux, AIX, many BSDs. Standalone utilities for communication with another workstation: fmsg, fsend, fquery, ffpcopy, and ffpquery.
filemanager.free.fr/