tar's uppercase J switch uses XZ (whereas the lowercase j switch uses bzip2). The XZ_OPT environment variable lets you set xz options. This is now maximal. See man xz for other options you can set (-e/--extreme might give you some additional compression benefit for some datasets). XZ_OPT=-e9 tar cJf tarfile.tar.xz directory

Tools to compress/decompress xz and gzip files are also available on Windows systems, but are more commonly seen and used on UNIX systems. xz and 7zip are known to have a better compression algorithm than gzip, but use more memory and time to compress/decompress. This topic is nicely discussed here.

xz has become a bit of a standard when it comes to package management in recent years. the LZMA2 compression algorithm xz uses, is exceptionally efficient with text (and "text-like") data. I personally use it for pretty much anything, where computational encoding speed is not an issue ( xz decompresses much faster than compressing, it's ...

2019年9月24日 · If you look through the tooling provided by the xz RPM on RHEL/CentOS/Fedora distros this RPM includes a few helper wrapper scripts that you can enlist to make short work of this.

2014年1月8日 · (There are some specific scenarios where a good bzip2 implementation may be preferable to xz: bzip2 can compresses a file with lots of zeros and genome DNA sequences better than xz. Newer versions of xz now have an (optional) block mode which allows data recovery after the point of corruption and parallel compression and [in theory] decompression.

2021年9月22日 · Like gzip (.gz) and bzip2 (.bz2), but unlike zip and rar, xz is a compression format, not an archive format. You can compress one file: 7z a -txz foo.xz foo This is equivalent to xz foo. Typically, to make a compressed archive, you make a tar archive and compress it.

As far as I can tell, XZ is a container that uses the LZMA2 algorithm (i.e. extended LZMA); but e.g. $ xz foo/ complains about foo/ being a directory. So presumably the correct way to preserve directories with XZ is with tar; then what is the difference between tar --lzma and tar --xz?

I recommend downloading the .tar.xz version of the file, since it is the smallest: linux-2.6.36.2.tar.xz. The .sign file next to it contains the cryptographic PGP signature to verify the downloaded file's authenticity and integrity.

2015年4月6日 · .xz. First, the last extension .xz is a lossless data compression program and file format which incorporates the LZMA/LZMA2 compression algorithms, say Wikipedia. Developed by The Tukaani Project. For use on Mac OS X, Apple’s Archive Utility.app cannot handle this format (as of Yosemite).

2020年10月18日 · error: cannot perform the following tasks: - Mount snap "core" (10126) (cannot run unsquashfs: ----- Filesystem uses xz compression, this is unsupported by this version Decompressors available: gzip -----) So I went to the squashfs LZMA website, downloaded the tarball and extracted it. When I ran make, I got these errors: