On Thu, Jan 17, 2013 at 09:29:55PM -0500, Fbsd8 wrote: > The man page for tar command says there a 4 different compress types > you can use, xz, bzip, bzip2 and gzip.
xz uses Lempel-Ziv-Markov chain algorithm. bzip2 uses Burrows-Wheeler transform. > Which one is the fastest and compresses the most? Sounds like a case of fast or cheap: choose one. Or is it fast or expensive? Or maybe it's all just bragging. OTOH, apropos compression may be instructive: 7z (and related) > I am using -z option for gzip and it sure is slow. > Hoping one of the other zip options are better. > What do you guys use? Used to use bzip2 and tar. Nowadays I just place files on a big disk that only runs when I backup my bits. > Another question about tar is can I have tar create a compressed bkup > of 2 files and a directory tree all in single tar command? For directories, I've used this: tar -cf - -C srcdir . | tar xpf - -C destdir The tar man page has this: tar -czf file.tar.gz source.c source.h Since anything is a file, it seems to me it would work on a directory with this: tar -czf file.tar.gz source.c source.h /path/to/directory I also note that (since you've mentioned mtree) the man page on tar provides an example on mtree. Could this be applied to your needs? Best regards, Joe _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
