Gzip (V1.5) - Busch-Jaeger 6186/33 Produkthandbuch

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Gzip (v1.5):

This is the file README for the gzip distribution.
The GNU gzip home page is http://www.gnu.org/software/gzip.
gzip (GNU zip) is a compression utility designed to be a replacement
for 'compress'. Its main advantages over compress are much better
compression and freedom from patented algorithms. The GNU Project
uses it as the standard compression program for its system.
gzip currently uses by default the LZ77 algorithm used in zip 1.9 (the
portable pkzip compatible archiver). The gzip format was however
designed to accommodate several compression algorithms. See below
for a comparison of zip and gzip.
gunzip can currently decompress files created by gzip, compress or
pack. The detection of the input format is automatic. For the
gzip format, gunzip checks a 32 bit CRC. For pack, gunzip checks the
uncompressed length. The 'compress' format was not designed to allow
consistency checks. However gunzip is sometimes able to detect a bad
.Z file because there is some redundancy in the .Z compression format.
If you get an error when uncompressing a .Z file, do not assume that
the .Z file is correct simply because the standard uncompress does not
complain. This generally means that the standard uncompress does not
check its input, and happily generates garbage output.
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