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to-xz(1)                    General Commands Manual                   to-xz(1)


NAME

       to-xz - converts .Z, .lzo, .gz, .zip, .rar, .bz2, .bz3, .zst, and .lzma
       files to xz format


SYNOPSIS

       to-xz [-(IPv)4] [-(IPv)6] [-d(elete_original)] [-h(elp)]
       [-k(eep_smallest)] [-m(ax_compress)] [-n(o_overwrite)] [-p num_cores]
       [-t(imestamp_retain)] file/URL...


DESCRIPTION

       to-xz recompresses files compressed with the compress, lzop, zip, gzip,
       bzip2, bzip3, zstd, and/or lzma(_alone) utilities into xz format.  The
       newly compressed files will usually have a .xz or a .txz extension.  If
       a specified file is actually a URL, it will be downloaded using wget
       and then recompressed.


OPTIONS

       -4     Prefer IPv4 when downloading a URL.

       -6     Prefer IPv6 when downloading a URL.

       -d     After each file is compressed, delete the original.

       -h     Print help and quit.

       -k     Once a file is successfully recompressed, delete the larger of
              the original file or the new one.  This option maximizes disk
              space savings and is incompatible with the -d option.

       -m     Compress more, but at the expense of increased CPU time and
              memory usage.

       -n     Do not overwrite the target .xz or .txz file if it already
              exists.

       -p num_cores
              Use the multi-threaded -T option of xz to utilize multiple cores
              during compression.  Note that the output file, while being
              fully compatible with unthreaded xz, will generally be slightly
              larger.  Specifying a num_cores value of zero will utilize all
              available cores.

       -t     Make the timestamp of new files match those of the old files.

              xz(1), compress(1), lzop(1), zip(1), gzip(1), bzip2(1),
              bzip3(1), zstd(1), lzma(1), lzma_alone(1), rar2tarcat(1),
              zip2tarcat(1), wget(1)


COPYRIGHT

       Copyright (C) 2009-2023 by Brian Lindholm and D. Gloger.  This program
       is free software; you can use it, redistribute it, and/or modify it
       under the terms of the GNU General Public License as published by the
       Free Software Foundation; either version 3, or (at your option) any
       later version.

       This program is distributed in the hope that it will be useful, but
       WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       General Public License for more details.

littleutils                       2023 Apr 10                         to-xz(1)

littleutils 1.2.6 - Generated Mon Jun 26 07:47:10 CDT 2023
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