Compress files or a directory to xz format. XZ has superior and faster compression than bzip2 in most cases. XZ is superior to 7zip format because it can save file permissions and other metadata data.
compress directory archive with xz compression, if tar doesn't have the -J option (OSX tar doesn't have -J)
Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?
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tar c --lzma /path/to/data > archivename.tar.lzma