shell ftp判断远程主机是否存在某目录

. $HOME/.profile
WORK_HOME="/data/log"

Login()
{
	HOST_IP='12.25.79.1'
	USRNM='xxx'
	PWD='xxx'
	REM_DIR='/data/raddata'
	FILNM=xx
	ret=`ftp -inv $HOST_IP >> ${WORK_HOME}/ftp.log <

ftp.log打印日志：
230 User lcims logged in.
550 /data/raddata: A file or directory in the path name does not exist.
221 Goodbye.

通过搜索“A file or directory in the path name does not exist” 可以判断远程主机是否存在REM_DIR目录。

去除ret=`ftp -inv $HOST_IP >> ${WORK_HOME}/ftp.log <

注意：ftp的指令需要用下撇号括住，不然报错。