LZIPRECOVER(1) User Commands LZIPRECOVER(1) NAME lziprecover - recovers data from damaged files SYNOPSIS lziprecover [options] [files] DESCRIPTION Lziprecover is a data recovery tool and decompressor for files in the lzip compressed data format (.lz). Lziprecover also provides Forward Error Cor- rection files (.fec) that can be used to repair any kind of file, not only lzip files. A fec file can be used as recovery record for a tar.lz archive. Lziprecover can remove the damaged members from multimember files, for ex- ample multimember tar.lz archives. Lziprecover provides random access to the data in multimember files; it only decompresses the members containing the desired data. OPTIONS -h, --help display this help and exit -V, --version output version information and exit -a, --trailing-error exit with error status if trailing data -A, --alone-to-lz convert lzma-alone files to lzip format -b, --block-size=<bytes> make FEC block size a multiple of <bytes> -B, --byte-repair try to repair a corrupt byte in file -c, --stdout write to standard output, keep input files -d, --decompress decompress, test compressed file integrity -D, --range-decompress=<n-m> decompress a range of bytes to stdout -e, --reproduce try to reproduce a zeroed sector in file --lzip-level=N|a|m[N] reproduce one level, all, or match length --lzip-name=<name> name of lzip executable for --reproduce --reference-file=<file> reference file for --reproduce -f, --force overwrite existing output files -F, --fec=c[N]|r|t|l create, repair, test, list (using) fec file -0 .. -9 set FEC fragmentation level [default 9] --fec-file=<file>[/] read fec file from <file> or directory -i, --ignore-errors ignore non-fatal errors -k, --keep keep (don't delete) input files -l, --list print (un)compressed file sizes -m, --merge repair errors in file using several copies -n, --threads=<n> set number of threads for fec create [2] -o, --output=<file>[/] place the output into <file> or directory -q, --quiet suppress all messages -r, --recursive (fec) operate recursively on directories -R, --dereference-recursive (fec) recursively follow symbolic links -s, --split split multimember file in single-member files -t, --test test compressed file integrity -v, --verbose be verbose (a 2nd -v gives more) --append=<file> append <file> as trailing data --dump=<list>:d:e:t dump members, damaged, empty, tdata to stdout --remove=<list>:d:e:t remove members, tdata from files in place --strip=<list>:d:e:t copy files to stdout stripping members given --loose-trailing allow trailing data seeming corrupt header --nonzero-repair repair in place a nonzero first LZMA byte If no file names are given, or if a file is '-', lziprecover decompresses from standard input to standard output. Numbers may contain underscore separators between groups of digits and may be followed by a SI or binary multiplier: 1_234_567kB, 4KiB. The argument to --fec=create may be a num- ber of blocks (-Fc20), a percentage (-Fc5%), or a size in bytes (-Fc10KiB). To extract all the files from archive 'foo.tar.lz', use the commands 'tar -xf foo.tar.lz' or 'lziprecover -cd foo.tar.lz | tar -xf -'. EXIT STATUS 0 for a normal exit, 1 for environmental problems(file not found, invalid command-line options, I/O errors, etc), 2 to indicate a corrupt or invalid input file, 3 for an internal consistency error (e.g., bug) which caused lziprecover to panic. REPORTING BUGS Report bugs to lzip-bug@nongnu.org Lziprecover home page: http://www.nongnu.org/lzip/lziprecover.html COPYRIGHT Copyright (C) 2026 Antonio Diaz Diaz. License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO The full documentation for lziprecover is maintained as a Texinfo manual. If the info and lziprecover programs are properly installed at your site, the command info lziprecover should give you access to the complete manual. lziprecover 1.26 February 2026 LZIPRECOVER(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS | REPORTING BUGS | COPYRIGHT | SEE ALSO
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