xfs結構
https://web.archive.org/web/20160113152052/http://oss.sgi.com/projects/xfs/papers/xfs_filesystem_structure.pdf
xfs結構
https://web.archive.org/web/20160113152052/http://oss.sgi.com/projects/xfs/papers/xfs_filesystem_structure.pdf
shell腳本獲取腳本所在目錄 執行腳本的父目錄不一定是當前的工作目錄。 url=$(dirname $(readlink -f $0))