Re: Auto skip uploading files that already exist on server
Use the
https://winscp.net/eng/docs/scriptcommand_put#neweronly
https://winscp.net/eng/docs/scriptcommand_synchronize
-neweronly switch or the synchronize command.
https://winscp.net/eng/docs/scriptcommand_put#neweronly
https://winscp.net/eng/docs/scriptcommand_synchronize