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Commands using bzip2

Terminal - Commands using bzip2 - 8 results

find . -type f -name "*.gz" | while read line ; do gunzip --to-stdout "$line" | bzip2 > "$(echo $line | sed 's/gz$/bz2/g')" ; done

2013-04-12 19:18:21

User: Kaurin

Functions: bzip2 find gunzip read

Tags: gzip compression bzip2

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Recompress all files in current directory from gzip to bzip2

Find all .gz files and recompress them to bz2 on the fly. No temp files.

edit: forgot the double quotes! jeez!

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tee >(openssl md5 > sum.md5) <somefile | bzip2 > somefile.bz2

2013-01-27 05:59:14

User: cfajohnson

Functions: bzip2 tee

Up
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Get MD5 checksum from a pipe stream and do not alter it

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cat somefile | tee >(openssl md5 > sum.md5) | bzip2 > somefile.bz2

2013-01-14 22:03:46

User: bugmenot

Functions: bzip2 cat tee

Up
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Get MD5 checksum from a pipe stream and do not alter it

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mysqldump -u user -h host -ppwd -B dbname | bzip2 -zc9 > dbname.sql.bz2

2010-01-19 07:34:21

User: olaseni

Functions: bzip2 host

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Dump and bz2compress a mysql db

To also move the db backup to another location you could pass the output to the dd command instead of a file

mysqldump -u user -h host -ppwd -B dbname | bzip2 -zc9 | dd ssh usr@server "dd of=db_dump"

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2009-12-20 14:04:39

User: pornel

Functions: bzip2 c++ find rev sort tar

Tags: tar rev solid archive

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Slightly better compressed archives

Avoids creating useless directory entries in archive, and sorts files by (roughly) extension, which is likely to group similar files together for better compression. 1%-5% improvement.

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for a in bzip2 lzma gzip;do echo -n>$a;for b in $(seq 0 256);do dd if=/dev/zero of=$b.zero bs=$b count=1;c=$(date +%s%N);$a $b.zero;d=$(date +%s%N);total=$(echo $d-$c|bc);echo $total>>$a;rm $b.zero *.bz2 *.lzma *.gz;done;done

2009-10-20 01:00:51

User: matthewbauer

Functions: bzip2 date dd echo seq

Tags: graph benchmark plot compression format

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Compression formats Benchmark

See: http://imgur.com/JgjK2.png for example.

Do some serious benchmarking from the commandline. This will write to a file with the time it took to compress n bytes to the file (increasing by 1).

Run:

gnuplot -persist <(echo "plot 'lzma' with lines, 'gzip' with lines, 'bzip2' with lines")

To see it in graph form.

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sudo wget -c "http://nmap.org/dist/nmap-5.00.tar.bz2" && bzip2 -cd nmap-5.00.tar.bz2 | tar xvf - && cd nmap-5.00 && ./configure && make && sudo make install

2009-07-26 11:36:53

User: hemanth

Functions: bzip2 cd make sudo tar wget

-6

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Install NMAP 5.0 ,Short and sweet command to do it

Just copy and paste the code in your terminal.

Note : sudo apt-get for debian versions , change as per your requirement .

Source : www.h3manth.com

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< /dev/urandom tr -dc A-Za-z0-9_ | head -c $((1024 * 1024)) | tee >(gzip -c > out.gz) >(bzip2 -c > out.bz) > /dev/null

2009-04-04 13:23:01

User: jnash

Functions: bzip2 gzip head tee tr

Tags: bzip2, gzip, compression,

-2

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gzip vs bzip2 at compressing random strings?

Does that count as a win for bzip2?