tar.xz compression is becoming more popular. Here is how it works!
1. On Debian or Ubuntu, first install the package xz-utils
$ sudo apt-get install xz-utils
2. Extract a .tar.xz the same way you would extract any tar.__ file.
$ tar -xf file.tar.xz
Done.
1. To create a .tar.xz archive, use tack c
$ tar -cJf linux-3.12.6.tar.xz linux-3.12.6/
That’s $ tar -cJf [name of archive] [directory to compress]
Think x to extract, and c to create.
Rock on,
sumber : https://scottlinux.com/2014/01/07/extracting-or-uncompressing-tar-xz-files-in-linux/