lzip/lziprecover
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Merging upstream version 1.21.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
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Daniel Baumann 2025-02-21 11:29:36 +01:00
parent 4b818dc40b
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Signed by: daniel
GPG key ID: FBB4F0E80A80222F
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README
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@ -1,20 +1,25 @@
Description
Lziprecover is a data recovery tool and decompressor for files in the
lzip compressed data format (.lz). Lziprecover is able to repair
slightly damaged files, produce a correct file by merging the good parts
of two or more damaged copies, extract data from damaged files,
decompress files and test integrity of files.
Lziprecover is a data recovery tool and decompressor for files in the lzip
compressed data format (.lz). Lziprecover is able to repair slightly damaged
files, produce a correct file by merging the good parts of two or more
damaged copies, extract data from damaged files, decompress files and test
integrity of files.
Lziprecover provides random access to the data in multimember files; it
only decompresses the members containing the desired data.
Lziprecover can remove the damaged members from multimember files, for
example multimember tar.lz archives.
Lziprecover provides random access to the data in multimember files; it only
decompresses the members containing the desired data.
Lziprecover facilitates the management of metadata stored as trailing data
in lzip files.
Lziprecover is not a replacement for regular backups, but a last line of
defense for the case where the backups are also damaged.
The lzip file format is designed for data sharing and long-term
archiving, taking into account both data integrity and decoder
availability:
The lzip file format is designed for data sharing and long-term archiving,
taking into account both data integrity and decoder availability:
* The lzip format provides very safe integrity checking and some data
recovery means. The lziprecover program can repair bit flip errors
@ -23,11 +28,11 @@ availability:
merging of damaged copies of a file.
* The lzip format is as simple as possible (but not simpler). The
lzip manual provides the source code of a simple decompressor along
with a detailed explanation of how it works, so that with the only
help of the lzip manual it would be possible for a digital
archaeologist to extract the data from a lzip file long after
quantum computers eventually render LZMA obsolete.
lzip manual provides the source code of a simple decompressor
along with a detailed explanation of how it works, so that with
the only help of the lzip manual it would be possible for a
digital archaeologist to extract the data from a lzip file long
after quantum computers eventually render LZMA obsolete.
* Additionally the lzip reference implementation is copylefted, which
guarantees that it will remain free forever.
@ -56,7 +61,7 @@ with the '-D' option.
When recovering data, lziprecover takes as arguments the names of the
damaged files and writes zero or more recovered files depending on the
operation selected and whether the recovery succeeded or not. The
damaged files themselves are never modified.
damaged files themselves are kept unchanged.
When decompressing or testing file integrity, lziprecover behaves like
lzip or lunzip.
@ -75,7 +80,7 @@ unzcrash.c from Julian Seward's bzip2. Type 'make unzcrash' in the
lziprecover source directory to build it. Then try 'unzcrash --help'.
Copyright (C) 2009-2018 Antonio Diaz Diaz.
Copyright (C) 2009-2019 Antonio Diaz Diaz.
This file is free documentation: you have unlimited permission to copy,
distribute and modify it.