to-xz(1) General Commands Manual to-xz(1)
NAME
to-xz - convert .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) 2009-2025 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 2025 Mar 22 to-xz(1)
littleutils 1.2.8 - Generated Sun Oct 19 09:27:49 CDT 2025