与远程主机之间复制文件
本地文件到远程
scp local_file remote_username@remote_ip:remote_folder
远程文件到本地
scp -r remote_username@remote_ip:remote_folder local_folder
scp local_file remote_username@remote_ip:remote_folder
scp -r remote_username@remote_ip:remote_folder local_folder