yes, but it's a lot slower too. both gzip and bzip2 take arguments -1 through -9. -1 being fastest and -9 being slowest.
/usr# time tar clfj - share > share.tar.bz2; ls -l share.tar.bz2 real 3m23.895s user 3m12.188s sys 0m2.826s 97260 -rw-r--r-- 1 root root 99594240 Aug 27 04:38 share.tar.bz2 /usr# time tar clfz - share > share.tar.gz; ls -l share.tar.gz real 0m27.745s user 0m24.088s sys 0m2.908s 102772 -rw-r--r-- 1 root root 105236480 Aug 27 04:40 share.tar.gz usually bzip2 makes more of a difference than it did there. |
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I like often to turn my machine off at night (it's not a server), so I do like to be able to backup during actual use--but a lot of files if in use at the moment by an application either don't get copied correctly, or else they don't get copied at all. So that's a consideration... I've been seeking the best backup routine for almost two years now and I'm still about where I started. |
i like dar. it has a lot of the features of dump, but works on different filesystems. you can do full backup or just backup files that changed since the last backup.
and i meant that bzip2 usually makes a bigger file size difference than above. |
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