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- This program is distributed on shareware basis.
- See 'license.txt' file for more details.
-
- Tar is a tool to save files to archive media and restore them back
- again. Despite of its name, the program handles many media types,
- be it a floppy disk or regular file.
-
- The program was initially written for UNIX operating system, but
- since many other OS support its format, tar became a useful tool
- for information exchange between different platforms.
-
- There was number of tar implementations. What are the reasons to
- field another one?
-
- Distinguishable features of the given program are:
- - it process in a uniform way under both MS-DOS and UNIX clones;
- - it does read/write UNIX-compatible floppies and quarter-inch
- streamer cartriges under DOS;
- - it supports unusual floppy formats: 80-tracks-by-9-sectors and
- DEC Rainbow (under DOS);
- - it supplies data compression option under both DOS and UNIX;
- - it allows to read System V and/or GNU multivolume archives
- under DOS and all UNIX clones;
- - it includes option to restore damaged archives and plenty of
- other useful options.
-
- You can read detailed description in 'tar.txt' file.
-
- Possible improvements in future versions are briefly
- mentioned in 'to.do' file.
-
- Copyright issues
-
- I) Source codes performing 'deflate' compression are derived
- from Info-Zip 'zip' 2.01 distribution copyrighted by Mark
- Adler, Richard B. Wales, Jean-loup Gailly, Kai Uwe Rommel,
- Igor Mandrichenko and John Bush.
-
- Info-ZIP's software (Zip, UnZip and related utilities) is free and
- can be obtained as source code or executables from various
- anonymous-ftp sites, including ftp.uu.net:/pub/archiving/zip/*.
-
- Accordingly to Info-Zip copyright license terms you can also get
- original Zip sources directly from myself for the cost of
- overhead expenses only.
-
-
- II) since LZW algorithm used by compress program is protected by
- US patent, there are two versions of the program with certain
- restrictions associated with them.
-
- Call the program without parameters to obtain info screen.
- First line contains version information - something like
- 'Tape ARchive utility v3.15' with subsequent plus or minus sign.
- If this sign is
-
- minus (-), then
- this version has unlimited distribution but provides less
- functionality: it supports LZW extraction only, not
- compression. Namely, both 'z' and ',' (comma) options will
- work for extraction only (they will work with 't' or 'x'
- options).
-
- plus (+), then
- this version includes full LZW support, i.e. it allows to
- create compressed archives, but it may not be sold in US.
- As a rule that means that you are not allowed to use it in
- US - see license agreement for more details.