摘要： man sedAddresses Sed commands can be given with no addresses, in which case the command will be executed for all input lines; with one address, in which case the command will only be executed for inpu... 阅读全文

摘要： rsync相比于scp有性能优势，会对文件进行检验，决定哪些文件需要拷贝，哪些已经存在不用拷贝。scp比rcp更安全。rsync was originally written as a replacement for rcp and scp.参考:http://en.wikipedia.org/wiki/Rsync 阅读全文

摘要： 以前用的rsync自己拷贝，用ssh-copy-id就可以直接安装到远程主机上。 阅读全文