You want to use:

open ftp://catftp:pass123@ftp.sourcing.com/

The -hostkey is for SFTP/SCP, not for FTP.

See https://winscp.net/eng/docs/session_url

I posted the above question. what is that "@example.com" in the syntax?

Hi All,

I am very new to winscp. My requirement is very simple. I just need to download the files from ftp and save it in local drive. I am trying to write batch file by getting online help. I have a doubt in Open command.

Syntax(Got it online):
open sftp://user:password@example.com/ -hostkey="ssh-rsa 2048 xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx"

I am not sure how to change it. For example, my FTP address is ftp.sourcing.com and username/password is catftp/pass123. I dont know what the host key is. Please guide me on how to write ftp command.