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Anyone else here subscribe to the LINUX JOURNAL? |
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In the September issue there's a neat article titled tha same as the subject |
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line of this message. |
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The skinny is, there's some really nice file compressors out there and I never |
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heard of two of them... Anyone else know about LZMA or 7ZA? |
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The two mentioned compression tools work pretty much like gzip. You tar up |
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your files, pipe to the compression filter and then on to the target file. |
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Below is a small example of what I've been seeing here at the shack. |
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-rw-r--r-- 1 root root 12359680 Aug 12 23:57 backup.tar |
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-rw-r--r-- 1 root root 3536665 Aug 13 00:01 backup.tar.7z |
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-rw-r--r-- 1 root root 4438465 Aug 13 00:08 backup.tar.bz2 |
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-rw-r--r-- 1 root root 4747637 Aug 13 00:03 backup.tar.gz |
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-rw-r--r-- 1 root root 2731412 Aug 13 00:10 backup.tar.lzma |
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-rw-r--r-- 1 root root 5125474 Aug 13 00:16 backup.tar.lzop |
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What you're seeing are the results of compressing /lib on my gentoo powered |
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laptop. I've not bothered with timing the processes as the better compression |
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rates are at the cost of speed and memory usage. Not good for "while you |
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wait" processing, but just plain perfect for backups and what-have-you on |
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servers... One side note, 7za does not record user/group info... It's a shame |
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too as this make it pretty much useless in most linux backup scenarios. This |
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lzma creature is simply awesome. |
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You can find it at: http://martinus.geekisp.com/rublog.cgi/Projects/LZMA |
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Cheers all.... |
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****************************************************************************** |
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Registered Linux User Number 185956 |
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FSF Associate Member number 2340 since 05/20/2004 |
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Join me in chat at #linux-users on irc.freenode.net |
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Buy an Xbox for $149.00, run linux on it and Microsoft loses $150.00! |
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12:28am up 26 days, 27 min, 1 user, load average: 0.00, 0.00, 0.00 |
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