I may be being ignorant here, but I have been researching for the past 30 minutes and have not found how to do this. I was uploading a bunch of files to my server, and then, prior to them all finishing, I edited one of those files. How can I update the file on the server to the file on my local computer? 
Bonus points if you tell me how I can link the file on my local computer to auto update on the server when I connect (if possible of course)
Have you considered Dropbox or SVN ?
update file on ssh and link to local computer