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LDIFF.MAN
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1989-07-18
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6KB
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174 lines
Differential Archiving Program LDiff v1.20
------------------------------------------
July 18, 1989
1. Examples
============
You have the following files in this package.
LDIFF.MAN ; this File,
LDIFF.EXE ; LDIFF v1.20
The following tests are the results to assure you the dependable feature
of the present version of LDIFF.EXE. You just follow the typed-in key
sequence and it will show what this program can do. Lower-case letters
were typed in commands and those shown in upper-case are responses from
LDIFF.EXE on the CRT screen.
------------------Test 1: PKZ090.EXE -->> PKZ092.EXE --------------------
ldiff c pkz.lzd pkz090.exe pkz092.exe
Creating PKZ.LZD from PKZ092.EXE with PKZ090.EXE
(Lzd/New)=( 63.12%)
ren pkz092.exe pkz.exe
ldiff x pkz.lzd pkz090.exe
Old File(PKZ090.EXE) is good SIZE & CRC
Creating PKZ092.EXE from PKZ090.EXE with PKZ.LZD
CONGRATULATION!! Name of new file is C:\PKZ092.EXE
dir
PKZ EXE 102528 89-03-18 19:39
PKZ090 EXE 91520 89-02-20 9:33
LDIFFE EXE 23244 89-07-15 1:20
PKZ LZD 64771 89-03-18 19:39
PKZ092 EXE 102528 89-03-18 19:39
--------------- Test 2: PROCOMM.COMM v.2.4.2-->v.2.4.3 ----------------
PRCM243 EXE 167072 88-12-20 9:36
PRCM242 EXE 165296 86-10-17 10:46
LDIFF EXE 23244 89-07-15 1:20
ldiff c prcm.lzd prcm242.exe prcm243.exe
Creating PRCM.LZD from PRCM243.EXE with PRCM242.EXE
(7123)-(0177) (lzd.new)=( 50.12% )
PRCM LZD 83799 88-12-20 9:36
ren prcm243.exe p3.exe
ldiff x prcm.lzd prcm242.exe
Old File(PRCM242.EXE) is good SIZE & CRC
Creating PRCM243.EXE from PRCM242.EXE with PRCM.LZD
CONGRATULATION!! Name of new file is C:\PRCM243.EXE
P3 EXE 167072 88-12-20 9:36
PRCM242 EXE 165296 86-10-17 10:46
LDIFFE EXE 23244 89-07-15 1:20
PRCM LZD 83799 88-12-20 9:36
PRCM243 EXE 167072 88-12-20 9:36
---------------------Test 3: GMK2.EXE -->> GMK3.EXE---------------------
GMK3 EXE 175017 88-09-20 12:00
GMK2 EXE 46285 88-03-10 12:00
ldiff c gmk.lzd gmk2.exe gmk3.exe
Creating GMK.LZD from gmk3.exe with gmk2.exe
GMK LZD 174702 88-09-20 12:00
(174702/175017 97.49%)
ren gmk3.exe g.exe
G EXE 175017 88-09-20 12:00
GMK LZD 174702 88-09-20 12:00
ldiff x gmk.lzd gmk2.exe
Old File(GMK2.EXE) is good SIZE & CRC
Creating GMK3.EXE from GMK2.EXE with GMK.LZD
CONGRATULATION!! Name of new file is C:\GMK3.EXE
GMK2 EXE 46285 88-03-10 12:00
G EXE 175017 88-09-20 12:00
GMK LZD 174702 88-09-20 12:00
GMK3 EXE 175017 88-09-20 12:00
--------------------------------Test GMK--------------------------------
2. Commands
============
There are X,C,H commands in the present version.
ldarc h <CR>
is the same with
ldarc <CR>.
You will see a small help screen.
X command is the default command of LDIFF.EXE. The file extension .LZD
shows that is is a compressed difference file. Ordinary usage
is;
ldiff [x] compdiff.lzd [old_file.ext] [new_file.ext]
Ldiff will eXtract 'COMPDIFF.LZD' file and places the differ-
ences into specified positions of 'old_file.ext' and get
'new_file.ext'.
If you do not specify 'old_file.ext', then you will have names
that are specified by 'diffcomp.lzd'.
If you do not specify 'new_file.ext' then 'diffcomp.lzd' will
automatically take its name from its own.
C command is to Create the difference file and to Compact it.
ldiff c [ 23.lzd ] ldarc102.exe ldarc103.exe
The above command line will create the difference file
'23.lzd' of the old_file 'ldarc102.exe' and 'ldarc103.exe'.
If you do not specify the difference file, you will have the
'new_file.lzd', that is ldarc103.lzd in the above case.
ldiff c [diffcomp.lzd] old_file.ext new_file.ext
is the general usage. You must always supply extension names
to 'old_file' and 'new_file'.
3. Comments
============
1. The largest old_file you can revise is 256 KB.
2. The longest word length in comparison is 16 KB.
3. You will see a pair of running numbers under the command line.
Numbers on the left: Number of charcters in the
output stream.
on the right: Number of words fit more than
4 charcters.
in the braces: ratio compressed_diff/New_file in size.
4. Old_file will be checked with file-length and CRC check. The
New file will be tested with CRC.
5. Error will be reported when there is no files specified
where Ldiff needs one.
6. Please inform 74100,2565 Kenjirou Okubo if you have a file
which can not be restored with C,X commands to the original.
You will see CRC error if you fail to restore the original.@@
7. PKZ090.EXE and PKZ092.EXE are shareware products of
PKWARE.INC. PROCOMM.EXE v2.4.2 and v2.4.3 are shareware
products of DataStorm Technologies Inc. GMK2.EXE and
GMK3.EXE are commercial products of Reference Software Inc.
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