ssh 192.160.1.100 -p 40012
scp user 192.169.72.2:/
scp -i /id_rsa -P40027 root@221.212.235.17:/sdzw/ramdisk/ftp/data/sdzw/url/* /home/sdzw/data_1121
ssh -i /id_rsa -p 40027 roow@221.212.235.17
