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I need to syncronize files in my computer with server to which I have only FTP access. So I can't use rsync (that would need at least SFTP, but the only channel available for me is plain vanilla FTP).
I only need one-way syncronization: from my machine to server. I have heard of a program called unison, but it seems to be meant for two-way syncronisation and I'm unsure whether it could be tweaked to do what I want. I should also add that the program should work non-interactively, so that it could be used inside a script.
Final option would be to write my own script that compares files by modification time (or something like that) and copies over the ones that have changed. I have already managed to mount the FTP directory to a local directory, so the problem boils down to just syncing two directories. But my gut feeling tells me, that there must be something like that already existing in the wild.
On OSX, install via:
brew install ncftp
. – kenorb – 2015-04-15T19:05:40.4471To copy whole directory trees, use
-R
. – kenorb – 2015-04-15T19:12:22.310+1 for the off-label use of -z to mean "noclobber"/"don't overwrite" – barrycarter – 2015-12-08T01:19:24.757
I wish I found this 2 days ago. I gave up on ncftpget since the man page did not show any "only newer" "skip existing" options. I beat my head on lftp -- from BASH to Python. Then I gave another try to ncftp on Google and found your solution. I looked it up for ncftpget (man page) -- "-z/-Z Do (do not) try to resume transfers. The default is to try to resume". Did not sound convincing. But, hell ya.. that's that option I was looking for: download only new files using ncftpget. I hope this comment helps some one. – Anup Nair – 2018-03-17T06:30:49.707
worked perfectly for me – roman m – 2009-11-13T21:01:24.183