winscp.exe /console /script=scriptfile
winscp.exe /console /command "option batch on" "option confirm off" "open sftp://username:password@hostname:port" "get filename" "exit"
winscp.exe /console /script=scriptfile sftp://username:password@hostname:port
winscp.exe /console /script=scriptfile /parameter param1 param2 ...
set YYYYMMDD=20151029