To extract .tar.xz files in Linux and unzip all of the files, you can use the tar command with the -xJf options. The syntax is as follows:
tar -xJf file.tar.xz
Replace file.tar.xz with the name of the .tar.xz file you want to extract.
This will extract the contents of the .tar.xz file to the current directory. The -x option tells tar to extract the files, the -J option tells it to uncompress the files using xz, and the -f option specifies the file to extract.
If you want to extract the .tar.xz file to a different directory, you can use the -C option followed by the destination directory. The syntax is as follows:
tar -xJf file.tar.xz -C /path/to/destination
This will extract the .tar.xz file to the /path/to/destination directory.
Keep in mind that the tar command will only extract the files contained in the .tar.xz file.