#
# doc/README.FILETYPES -- information about meanings of various file suffixes
#
# Status: Doc
# Author: staff@ftp.funet.fi
# Created: Tue Jun 15 22:16:13 EET DST 1993
# Last modified: Wed Sep 20 08:14:07 EET DST 1995
#


	README about FILETYPES

We use multiple file compression/packaging programs depending
upon target systems.  These methods are often denoted on file
name by a more-or-less standardized suffix(es).  On UNIX-like
environments, where packaging is  done with different utility
than the compression, and where name-spaces aren't limited by
some artificial 8+3 rules, there may be multiple suffixes.

Sometimes there are strange  hybrides of suffixes  when files
are intended to be  able to be  transported via limited name-
spaces, like MSDOS 8+3 characters.

This is NOT a list of  ALL  filetype suffixes there are, only
those that are common in here.


     Suffix	Methods				    Environment

	.arj	ARJ compress+packing			MSDOS
	.dms	DMS-compressed Amiga floppy *disk*	Amiga
	.gif	GIF-type packed (colour) image		image
	.gz	GNU-Zip					UNIX
	.jpeg	JPEG-compressed colour image		image
	.jpg	--"--					image
	.lha	LHA/LHARC compress+packing		multiple (Esp.Amiga)
	.lhx	Variant of  .lha			CBM C=64 ?
	.lzh	LHA/LHARC compress+packing		multiple
	.pma    PMARC compress+packing                  CP/M & MSX, also MSDOS
	.ps	PostScript -document (or program..)
	.sea	Macintosh  Self Extracting Archive	Mac
	.tar	UNIX tar -- "Tape ARchive" packaging	UNIX
	.tgz	== .tar.gz  (Esp. Linux)
	.xsa    d2ff2d, (un)archiver for 720K disks     MSX, MSDOS
	.Z	BSD compress				UNIX
	.z	GNU-Zip (old suffix, to be phased out)	UNIX
	.z	SysV pack (Huffman compression)		UNIX
	.zip	(PK)ZIP compress+packing		MSDOS
	.zoo	ZOO compress+packaging			multiple

    Note that the FTP-server at  ftp.funet.fi  (and some others) can
    unpack GNU-Zip (and BSD Compress, and sysV pack) while retrieving
    the file:   For any file with  name  XXX.YYY.gz  request file XXX.YYY,
    and automagic uncompress happens.   This of course expands the
    data, and thus transfer times will become longer...



	PLACES TO FIND HANDLING PROGRAMS FOR ABOVE LISTED FORMATS:


	ARJ:
		/pub/amiga/utilities/archivers/unarj-0.5.lha (Amiga binary)
		/pub/msdos/starter/arj241a.exe (MSDOS)
		/pub/msdos/starter/unarj241.exe (MSDOS)
		/pub/msdos/starter/unarj221.tar.Z (UNIX)
		/pub/msx/arvhive/unarj.pma (MSX)

	DMS:
		Amiga floppy disk compressor.
		/pub/amiga/utilities/archivers/DMS-1.11.run (Amiga binary)

	GIF, JPG:
		Image formats, see
			/pub/pics/viewers/..
		that directory contains symbolic links to places which
		have programs per machine/operating system/...

	GNU-Zip:
		/pub/amiga/utilities/archivers/gzip-1.1.2.lha (Amiga binary)
		/pub/gnu/prep/gzip/gzip-1.2.4.msdos.exe	(ready MSDOS binary)
		/pub/gnu/prep/gzip/gzip-1.2.4.tar	(Just plain TAR, SOURCE)
		/pub/gnu/prep/gzip/gzip-1.2.4.tar.gz	(GNU-Ziped tar)
		/pub/msdos/starter/gzip124.zip	(MSDOS-binary)
		/pub/unix/386ix/Solaris.x86/gzip (binary for Solaris 2/x86)
		/pub/unix/386ix/isc/arcers/gzip	(binary for ISC UNIX)
		(/ftp/)bin/gzip			(binary for Alpha, OSF/1 3.2)

	LZH/LHA:
		/pub/amiga/utilities/archivers/LhA_e138.run (Amiga binary)
		/pub/atari/arcers/lharc2.ttp		(ATARI binary)
		/pub/atari/arcers/lzh_201l.lzh  	(ATARI binary)
		/pub/msdos/starter/lha213.exe		(MSDOS binary;classic)
		/pub/mirrors/simtel.net/pub/simtelnet/msdos/arcers/lha* (MSDOS)
		/pub/unix/tools/lha-lharc/lha-1.00.tar.Z (UNIX source)

	LZH/LHA/PMA:
		/pub/msx/archive/pmext.com            (CP/M / MSX binary)
		/pub/msx/othersys/pmext4pc.arj        (works in MSDOS)

	SysV pack:
		GNU-Zip can unpack this, otherwice just use your
		favourite SysVr3 machine.  	(command:  unpack)

	PS
		PostScript -- document layout,etc. language.
		Feed to your PostScript(TM) printer..

	SEA:
		Macintosh  Self Extracting Archive.
		Upload the file in "macbinary" mode to your
		Machintosh and execute it.  (Like EXE-wrapped
		ZIPs et.al. on MSDOS)

	TAR-unpackers
		UNIX tar-program
		/pub/amiga/utilities/archivers/tar-1.1.0 (Amiga binary)
		/pub/gnu/tar-1.11.2.shar.gz	(sh(ar)-packed GNU-tar source)
		/pub/gnu/tar-1.11.2.tar.gz	(tar-packed GNU-tar source)
		/pub/msdos/starter/detar11.zip	(MSDOS tar-program)
		/pub/msdos/starter/tar.zip	(MSDOS tar-program)
		/pub/msdos/starter/extar10.zip	(MSDOS tar-program)
		/pub/msdos/starter/pdtar.zip	(MSDOS tar-program)
		/pub/msdos/starter/tar4dos.zip	(MSDOS tar-program)

	BSD compress:
		GNU-Zip can unpack this too.
		/ftp/bin/uncompress		(binary for SPARC, SunOS4.1.x)
		/pub/amiga/utilities/archivers/compress-4.1.lha (Amiga binary)
		/pub/msdos/starter/comp430*.zip (MSDOS compress/   )
		/pub/msdos/starter/decomp2.zip  ( uncompresses     )

	XSA:
		/pub/msx/archive/d2ff2d.lzh (both for MSX and MSDOS)

	ZIP:
		One particular format of PKZIP can be opened by the GNU-Zip
		(See GNU-Zip documents), however it is not a general case.

		For MSDOS there seem to be two mutually incompatible PKZIPs,
		more info when I know better (I am not a DOS user ...)

		/pub/amiga/utilities/archivers/unzip-5.1d3.lha (Amiga binary)
		/pub/atari/arcers/stzip21.lzh	   (ATARI binary)
		/pub/msdos/starter/pkz204g.exe (MSDOS Self-extracting arch)
		/pub/msdos/starter/unz50p1.exe     (MSDOS - another one..)
		/pub/unix/tools/zip/unzip50.tar.Z  (UNIX source)

	ZOO:
		/pub/amiga/utilities/archivers/Zoo-2.1.lha (Amiga binary)
		/pub/atari/arcers/zoo*.*	(ATARI programs)
		/pub/msdos/starter/zoo210.exe	(MSDOS binary)
		/pub/unix/tools/zoo/zoo-2.1.tar.Z (UNIX Zoo source)
