scp -- secure copy (remote file copy program)
scp copies files between hosts on a network. It uses ssh for data transfer, and uses the same authentication and provides the same security as ssh, scp will ask fro passwords or passphrases if they needed for authentication.
scp 在网络上的两台主机之间复制文件。它使用ssh来数据传输，它使用跟ssh相同的身份验证，并且跟ssh有相同的安全性。如果身份验证需要的话，scp会要求输入密码。
usage
//scp hostfile userInRemote@remoteIP:dstPath
//If your ssh key not in remote known host, it will prompt you to input a password
$ scp ./website.war tomcatUser@132.123.132.123:/home/tomcatUser/website.war
