1LZIPRECOVER(1) User Commands LZIPRECOVER(1)
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6 lziprecover - recovers data from damaged lzip files
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9 lziprecover [options] [files]
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12 Lziprecover - Data recovery tool and decompressor for the lzip format.
13 Lziprecover can repair perfectly most files with small errors (up to
15 one single-byte error per member), without the need of any extra redun‐
16 dance at all. Losing an entire archive just because of a corrupt byte
17 near the beginning is a thing of the past.
18 Lziprecover can also produce a correct file by merging the good parts
20 of two or more damaged copies, extract data from damaged files, decom‐
21 press files and test integrity of files.
22 Lziprecover provides random access to the data in multimember files; it
24 only decompresses the members containing the desired data.
25 Lziprecover facilitates the management of metadata stored as trailing
27 data in lzip files.
28 Lziprecover is not a replacement for regular backups, but a last line
30 of defense for the case where the backups are also damaged.
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33 -h, --help
34 display this help and exit
35 -V, --version
37 output version information and exit
38 -a, --trailing-error
40 exit with error status if trailing data
41 -A, --alone-to-lz
43 convert lzma-alone files to lzip format
44 -c, --stdout
46 write to standard output, keep input files
47 -d, --decompress
49 decompress
50 -D, --range-decompress=<range>
52 decompress a range of bytes (N-M) to stdout
53 -f, --force
55 overwrite existing output files
56 -i, --ignore-errors
58 make '--range-decompress' ignore data errors
59 -k, --keep
61 keep (don't delete) input files
62 -l, --list
64 print (un)compressed file sizes
65 -m, --merge
67 correct errors in file using several copies
68 -o, --output=<file>
70 place the output into <file>
71 -q, --quiet
73 suppress all messages
74 -R, --repair
76 try to repair a small error in file
77 -s, --split
79 split multimember file in single-member files
80 -t, --test
82 test compressed file integrity
83 -v, --verbose
85 be verbose (a 2nd -v gives more)
86 --loose-trailing
88 allow trailing data seeming corrupt header
89 --dump-tdata
91 dump trailing data to standard output
92 --remove-tdata
94 remove trailing data from files in place
95 --strip-tdata
97 copy files to stdout without trailing data
98 If no file names are given, or if a file is '-', lziprecover decom‐
100 presses from standard input to standard output. Numbers may be fol‐
101 lowed by a multiplier: k = kB = 10^3 = 1000, Ki = KiB = 2^10 = 1024, M
102 = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...
103 Exit status: 0 for a normal exit, 1 for environmental problems (file
105 not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or
106 invalid input file, 3 for an internal consistency error (eg, bug) which
107 caused lziprecover to panic.
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110 Report bugs to lzip-bug@nongnu.org
111 Lziprecover home page: http://www.nongnu.org/lzip/lziprecover.html
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114 Copyright © 2018 Antonio Diaz Diaz. License GPLv2+: GNU GPL version 2
115 or later <http://gnu.org/licenses/gpl.html>
116 This is free software: you are free to change and redistribute it.
117 There is NO WARRANTY, to the extent permitted by law.
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120 The full documentation for lziprecover is maintained as a Texinfo man‐
121 ual. If the info and lziprecover programs are properly installed at
122 your site, the command
123 info lziprecover
125 should give you access to the complete manual.
127lziprecover 1.20 February 2018 LZIPRECOVER(1)