远程调用下载文件直接用wget就可以，一般文件路径类型是http。如果有遇到是https就会下载出错。
错误如下：
[root@vmu010226-node1 tmp]# wget https://www.ohse.de/uwe/releases/lrzsz-0.12.20.tar.gz
--2014-11-25 13:44:16-- http://www.ohse.de/uwe/releases/lrzsz-0.12.20.tar.gz
Resolving www.ohse.de... 144.76.239.252
Connecting to www.ohse.de|144.76.239.252|:80... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://ohse.de/uwe/releases/lrzsz-0.12.20.tar.gz [following]
--2014-11-25 13:44:17-- https://ohse.de/uwe/releases/lrzsz-0.12.20.tar.gz
Resolving ohse.de... 144.76.239.252
Connecting to ohse.de|144.76.239.252|:443... connected.
ERROR: certificate common name “www.ohse.de” doesn’t match requested host name “ohse.de”.
To connect to ohse.de insecurely, use ‘--no-check-certificate’.只需要在wget后面加上--no-check-certificate就可以，需要一个认证下载指令而已。
wget --no-check-certificate https://www.ohse.de/uwe/releases/lrzsz-0.12.20.tar.gz问题解决