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发表于 2011-7-20 19:19:47
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什么是rsync；
rsync is a file transfer program for Unix systems. rsync uses the "rsync algorithm" which provides a very fast method for bringing remote files into sync. It does this by sending just the differences in the files across the link, without requiring that both sets of files are present at one of the ends of the link beforehand.
rsync 是一个Unix系统下的文件同步和传输工具。rsync是用 “rsync 算法”提供了一个客户机和远程文件服务器的文件同步的快速方法。
Some features of rsync include
rsync 包括如下的一些特性：
* can update whole directory trees and filesystems
能更新整个目录和树和文件系统；
* optionally preserves symbolic links, hard links, file ownership, permissions, devices and times
有选择性的保持符号链链、硬链接、文件属于、权限、设备以及时间等；
* requires no special privileges to install
对于安装来说，无任何特殊权限要求；
* internal pipelining reduces latency for multiple files
对于多个文件来说，内部流水线减少文件等待的延时；
* can use rsh, ssh or direct sockets as the transport
能用rsh、ssh 或直接端口做为传输入端口；
* supports anonymous rsync which is ideal for mirroring
支持匿名rsync 同步文件，是理想的镜像工具； |
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