从FTP服务器上下载文件:
ftpget -u username -p passwd -P port IP source target
从本地上传文件到FTP服务器:
ftpput -u username -p passwd -P port IP target source
//-----------------ftpget-----------------
ftpget 192.168.100.1 file
//-----------------ftpput-----------------
ftpput 192.168.100.1 file