# ls -l
总计 12
-rw-r--r-- 1 root root 3781 04-10 20:49 upgrade.log.bz2
-rw-r--r-- 1 root root 6164 04-10 20:48 upgrade.log.gz
# bzip2 filename
# bunzip2 filename.bz2
# bunzip2 upgrade.log -k
# ls
upgrade.log upgrade.log.bz2
# cat upgrade.log | bzip2 -c > upgrade.log.bz2
$ tar -cjvvf upgrade.log.bz2 upgrade.log
或者
$tar -cavvf upgrade.log.bz2 upgrade.log
$ tar -cvvf upgrade.log.tar
$ bzip2 upgrade.log.tar
$ tar -xjvvf upgrade.tar.bz2 -C ext_dir
$ bzip2 -9 upgrade.log
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