linux 分割打包

壓縮備份：
$ tar -cjvf- ./targrt-path/ | split -a 1 -b 600m – ./`date +%Y-%m-%d`.tar.bz2.

解壓縮還原：
$ cat *.bz2* | tar -jxvf-

引用網址：

1. https://vincentlam.wordpress.com/2009/04/22/%E4%BD%BF%E7%94%A8tar%E6%89%93%E5%8C%85%E5%A3%93%E7%B8%AE%E4%B8%A6%E5%88%86%E5%89%B2%E7%82%BA%E5%9B%BA%E5%AE%9A%E5%A4%A7%E5%B0%8F%E7%9A%84%E6%AA%94%E6%A1%88/