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Research and Development Area

AGREP 3.35 for DOS, OS/2, DOS boxes under Windows/OS/2 and AGREP 3.37 for Windows 95 and Windows/NT.

AGREP is a powerful tool for fast searching a file or many files for a string or regular expression, with approximate matching capabilities and user-definable records. It was developed 1989-1991 by Udi Manber and Sun Wu at the University of Arizona and many others. AGREP is similar to egrep (or grep or fgrep), but it is much more general and usually faster. It is copyrighted by the University of Arizona, but free for non-commercial use.

You can use many kinds of queries including arbitrary wild cards, sets of patterns, and in general, regular expressions. AGREP allows most of the options supported by the GREP family plus several more (but it is not 100% compatible with grep).

I ported it to OS/2 and DOS. Including full support for ISO-8859-1 (Latin-1) characters.
Many thanks to Dave and to Ron Aaron for their ports of AGREP 3.37 to Windows 95 and Windows/NT (January/September 1998).

WIBISA

Wiki-based Intranet- and Internet Search Assistant and bookmark sharing tool using auto-type detection and approximate and regular expression pattern shortcuts (WIBISA).
Research Disclosure RD488004, publication date 10.11.2004.

CRCMAN(found by this Google search) and WMATCH2(found by this Google search)

Two programs (DOS/Windows9x) to compare two complete folders, to check the integrity of whole file systems.

Suppose, that you copied your source - a couple of directories or even a whole disk - to your target - a backup device, for example an external hard disk drive or to a CD-ROM.

Problems:
There are two main questions and issues:
 

1. How can you be sure that no target files are missing ?
2. Are all target files readable and the very same as the source files ?


Additional issue:
 

1. These checks on the target medium should be possible even at a later time, when the source files are no longer available.


Solutions:
 

• I found two useful programs, both are based on the article Mark Nelson's article "File Verification Using CRC" (Dr.Dobb's Journal May 1992), the first description of his program CRCMAN. Mark Nelson is well known from his book and publications on Data Compression.

Both work with the long filenames of Windows and can be run on the command line.

Download CRCMAN from the page of  Eike Rathke (run from the command line; compliled with DJGPP DOS32 for DOS/Win9x includes C-sources for UNIX and DOS, version dated 05.01.2003).

The CRCMAN program provides also a solution to the additonal issue, because it creates a text file of all files (the whole structure) including their CRC check sums. This CRC file can be written as an additional file to your target file system to allow checking the target file against the CRC file at any time later.

Example of a CRC file, created by command crcman -b files.crc .

00000000 .\files.crc
e6abab42 .\crcman.c
4ca31461 .\crcman.htm
c63b1f3d .\crcman.exe
c36cde18 .\readme.txt
c8072bac .\01 - Mar Bobley and the Laywers - Exodus.mp3


Files can be checked later by using this small file files.crc

For test purposes, I modified the file files.crc and deleted the MP3 file here. Watch the results:

Output of command crcman -f files.crc
 

Checking l:\INCOMING\CRC\crcman\files.crc . Error:  Expected 00000000, got 44ef6ea3
Checking l:\INCOMING\CRC\crcman\crcman.c ... OK
Checking l:\INCOMING\CRC\crcman\crcman.htm ... OK
Checking l:\INCOMING\CRC\crcman\crcman.exe ... OK
Checking l:\INCOMING\CRC\crcman\readme.txt . OK
Error: Could not open file l:\INCOMING\CRC\crcman\01 - Mar Bobley and the Laywers - Legalize It.mp3

 
• download WMATCH2 by Bruno Sonnino published 17.09.2002 by PCMagazine (GUI-Version under Win9x, can also be run from command line, including sources  for Delphi 6). WMATCH2 is a ground-up rewrite of WMATCH1 (for 16-bit Windows) and based on DirMatch by Michael J. Mefford (1989). Printable version of the article here.
To efficiently compare two folder structures, to find differences
 
• just for completeness: BRIK (found by this Google search) - an older program by Rahul Dhesi (1989), similar to CRCMAN, including sources (outdated)

Recreational Area

Was heute noch wie ein Märchen klingt: 

• Die phantastischen Abenteuer des Raumschiffes Orion. 7-teilige Fernseh-Serie der Bavaria, 1965/1966.
• The phantastic adventures of the space-ship Orion. Television series in 7 parts, Germany 1965/1966.
• Les aventures fantastiques du vaisseau d'espace Orion. TV-serie en 7 parties de la Bavaria, 1965/1966.
• Send an Orion space postcard here Raumpostkarten schreiben

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"International and Domestic" Links & Mixed Pickles

• ADFC- Allgemeiner Deutscher Fahrrad-Club Bundesverband | Berlin
• AFN Berlin "The Juice" and "Disco"
• arte Français | Deutsch
• AVH - Akademischer Verein HÜTTE e.V.
• Bahnauskunft BVG Berlin
• Berliner Choralschola
  
• CK
• Chernikhov Virtual Museum - Constructivism, Fantasy Architecture and more
• Chip directory
• Currency Changer Yahoo Example: How much Euro (x) is 1 Dollar (y) today ?
• Electronics Informations Page
• Escherization progam TESS (synonyms: tilings, tesselations) - generate geometric ornaments - create your own gift wrapping paper | Tesselation resources
• Filou Fox Figurentheater, D-Hannover
• Form Art: Alexei Shulgin uses browser elements for design art
• GPS - Peter Bennett's collection of information about the Global Position System
• Greece - Hellas online: holidays, pictures, sailing, yacht brokers
• Sun Yachting Greece
• Gutenberg project German/Deutsch| English
• WDR Hobbythek
• HENSA Catalogued IBM PC Software: MS-DOS | Windows 3.xx (16 bit) | Windows 95 (32 bit) | OS/2 | OS/2 Warp
• Internet-Art (Guggenheim)
• Kostenlose Kleinanzeigen/Auktionen bei: HOOD | Vobis
• LEO Software Archive (TU Munich) /pub/comp/os/os2/leo/gnu | OS/2: the last 50 uploads
• Attention ! Obstacles ! Mind the gap ! Let op ! drempels
• Mietmängeltabelle des Deutschen Anwaltvereins und Urteile
• Mondrimat - generate your own Mondrian-style picture (using frames)
• Radio MultiKulti - SFB 4, Berlin | Andreas Pawelz inoffizielle MultiKulti Seite
• The NASCOM Microcomputer homepage - A Trip back to the 80s
• Astronavigation. Keith Burnett's page: approximate astronomical positions: Kepler; programs; BASIC program; sources and data; links to "Interactive Computer Ephemeris (ICE)" and "MICA, the Multiyear Interactive Computer Almanac", replacing the discontinued "Floppy Almanac" of U.S. Naval Observatory
• Astronavigation Nautical V1.5; sailing links
• Astronavigation astronav.zip and other nautical programs; Angelo Mascaro's sailing links
• Virtual Office
• Origami - Origami paper cd case generators, letter envelopes, wallet/Portemonnaie
• PGP - Ståle Schumacher's International PGP Homepage | PGP keyserver (MIT)
• Released: comp.security.pgp FAQ as a tree (or monolithic as HTML and ASCII)
• Pichelwetter.de - Wetter, Webcam-Bilder und Segelinfos aus Berlin-Spandau Ortsteil Pichelsdorf (Scharfe Lanke, Pichelsdorfer Fenster)
• PIC Microcontroller Page - David Tait
• Rezepte 
• My Sailing Pages
• Sailing Pointers (German; Holger Scholl; yacht charter; forms and lists for skippers)
• taz - Die Tageszeitung, Berlin | Tom Cartoons (German)
• Telephone Books: World | Teleauskunft DE | NL
• CNN Weather World | Athens | Auckland (NZ) | Berlin | The Hague | New York
• Weather forecast The Netherlands Wetternews | KNMI
• My Windchill Calculator | wind chill formula, its development and background information (USA Today)
• W-Akten -Bildung leicht gemacht - was man/n nicht unbedingt wissen muss, aber kann Wissen für Anfänger
• Die Zeit | Stimmt es, dass ... man bei Regen weniger nass wird, wenn man rennt ? ( Forum Stimmt's ? )
• ZITTY Berlin Program Database | Kino

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