to-bzip2(1) General Commands Manual to-bzip2(1)
NAME
to-bzip2 - convert .Z, .lzo, .zip, .rar, and .gz files to bzip2 format
SYNOPSIS
to-bzip2 [-h(elp)] [-(IPv)4] [-(IPv)6] [-d(elete_original)]
[-k(eep_smallest)] [-n(o_overwrite)] [-p num_cores]
[-t(imestamp_retain)] file/URL...
DESCRIPTION
to-bzip2 recompresses files compressed with the compress, lzop, zip,
and/or gzip utilities into bzip2 format. The newly compressed files
will usually have a .bz2 or a .tbz extension. If a specified file is
actually a URL, it will be downloaded using wget and then recompressed.
OPTIONS
-h Print help and quit.
-4 Prefer IPv4 when downloading a URL.
-6 Prefer IPv6 when downloading a URL.
-d After each file is compressed, delete the original.
-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.
-n Do not overwrite the target .bz2 or .tbz file if it already
exists.
-p num_cores
Use multi-threaded lbzip2 or pbzip2 instead of bzip2 to utilize
multiple cores during compression. Note that the output file,
while being fully compatible with bzip2, 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.
SEE ALSO
bzip2(1), lbzip2(1), pbzip2(1), compress(1), lzop(1), zip(1), gzip(1),
rar2tarcat(1), zip2tarcat(1), wget(1)
COPYRIGHT
Copyright (C) 2006-2026 by Brian Lindholm. 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 2026 Jan 01 to-bzip2(1)
littleutils 1.4.0 - Generated Wed Feb 18 07:45:16 CST 2026