CydandClaude Fable 5
db7745fcd0
Un-ignored: the dev drive is the ground truth the restoration and emulator work constantly reference (DPL3/LIBDPL + VRENDER i860 renderer source, BT/RP live+dev game trees, VGL_LABS pod boot, scene/audio content). Kept in-repo for the pod-owner community. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
175 lines
6.0 KiB
Plaintext
175 lines
6.0 KiB
Plaintext
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LHA205 HELP GUIDE
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by Irv Hoff, cleared by Yoshi-san
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27 January 1991
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NOTE: The help guide built into LHA.EXE is still
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in Japanese. Refer to the very end of this
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LHA205.HLP for the English version last made
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available.
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LHA205 - WHAT IS IT?
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-------------------
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LHA205 is a dual purpose archive program.
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1) Its primary purpose is to take normal binary or text files
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and make them smaller in size. This saves great amounts of
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storage space, with typical results being approximately 1/4
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to 1/3 of original size. It can handle any size file that
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can be placed on the disk, together with the compressed file
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it then makes. Files in excess of 1 Mb may be easily used,
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even though perhaps only 200 Kb RAM might be available.
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This eliminates any potential problems from one computer to
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another.
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It does this with by using special "compression tables."
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These are automatically built into the program and involve
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mathematical procedures which are simple for a computer.
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2) The secondary purpose is to take more than one of these
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programs and include them in just one file, although each
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will have its own individual name inside that file.
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This is called an "archive." In the days of
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CP/M, they were called "library" files. In the
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early days of MS-DOS (and other comparable pro-
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grams used by IBM computers) they were called
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.ARC files.
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However, as other comparable programs appeared,
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they were given various "extents" to identify
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the program used. Some sample names are .ARC,
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.DWC, .LZH, .PAK, .ZIP, etc.
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Each has its own special characteristics.
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Lists comparing the various programs are
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available.
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ARCHIVE FILES
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-------------
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LHA205 can have hundreds of files in a single .LZH archive.
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This allows storing complete hard disk directories in a space
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typically 1/2 or less the original total - although many of the
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files might already be archived.
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One such check made a file called "TEST.LZH." It had 200 files
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and was 41% the original directory size.
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Not only is this a great saving in size for storage, but puts
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(in this case), the 200 files into one, single file. This is
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often beneficial. Among other things, all files associated with
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one program are kept together in the same archive.
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------------------------------------------------------------------------
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SIMPLE INSTRUCTIONS FOR USING LHA205:
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-------------------------------------
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1) To compress one file called ABC.TXT. (It will make a
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file called ABC.LZH.)
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'a' LH205 a ABC ABC.TXT
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or
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'a' LH205 a ABC.LZH ABC.TXT
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^ ^ ^
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a b c
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a = command
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b = archive program name
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c = pgm (or pgms) to be added/compressed
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Either is suitable, one requires more typing.
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a) In this case, the "a" is called a command. There are
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12 of those available (shown below). A few are dupli-
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cates to initially help users more familiar with other
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programs.
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Typing LH205 will display this list on the screen. It
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also gives a very short summary what the command does.
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2) ADDING a program to an existing file:
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'a' LH205 a ABC ABC.DOC
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3) ADDING SEVERAL files at one time:
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'a' LH205 a ABC PGM1.EXT PGM2.EXT PGM3.EXT
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^
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archive name
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4) DELETING a file called PGM4.EXT:
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'd' LH205 d ABC PGM4
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^
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archive name
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5) EXTRACTING a file called PGM4.EXT:
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'e' (or 'x') LH205 e ABC PGM4
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^
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archive name
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6) LOOKING at the archive contents:
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'l' (or 'v') LH205 l ABC PGM4
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^
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archive name
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7) DISPLAY a text file in an archive:
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'p' LH205 p ARC PGM4
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^
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archive name
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COMMANDS:
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---------
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There are 12 commands available (several are duplicates, to
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make the program somewhat more compatible with programs that
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may have better-known to the user. The 'l' and 'v' are very
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slightly different, the 'v' putting the file name on a line
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by itself.)
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These are listed by typing just LHA without any command of file name:
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a: Add files to archive u: Update files to archive
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f: Freshen files in archive m: Move new files into archive
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d: Delete files from archive p: disPlay files in archive
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e: Extract files from archive x: eXtract files with directory
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l: List of files in archive v: View list with directory
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t: Test integrity of archive s: make a Self-extracting archive
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SWITCHES
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--------
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(There are 15 "switches" which will be explained in the
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MANUAL. Those include:
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<option>
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r: Recursively collect files w: assign Work directory
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x: allow eXtended file names m: no Message for query
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p: distinguish full Path names c: skip time-stamp Check
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a: allow any Attributes of files z: Zero compression (only store)
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t: archive's Time-stamp option h: select Header level (default = 1)
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o: use Old compatible method n: display No indicator
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i: not Ignore lower case l: display Long name with indicator
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@: Response file name option
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- end -
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