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I transfered 15gb over the network. I have aother 10 to go. How do i transfer via cmd line without overwriting existing files? I want to skip files so i dont store it again. I dont need unique names for this.

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Could be a bit more specific? transfer what? – DaveParillo Nov 11 '09 at 5:30
See "FTP software that checks data diffs?" at… and "Syncronizing files over FTP" at – Arjan Nov 11 '09 at 8:19

The man page for ftp lists the sunique and runique FTP subcommands which toggle saving files with unique filenames, as a way of avoiding overwriting existing files:

ie, file.1 if file exists, file.2 if file.1 exists, etc.

These are ftp commands, not OS command-line options for ftp, but I think the .netrc file could be used to toggle sunique or runique from the default OFF state when ftp starts.

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I am not worry about overwriting, just writing the same file again when i dont need to (thus the skipping which i forgot to mention!). Can i use sunique to plainly skip a file? I am thinking i should wipe the remote folder and start clean early during the day. – acidzombie24 Nov 11 '09 at 7:09

Between two Unix-based systems, why not just use rsync instead? It was written precisely to solve this problem.

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In addition to the other answers posted, wget should do anything you require quite easily.

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That's quite an odd (or creative) use of wget. How would one use that? – Arjan Nov 11 '09 at 8:16
would i need a wput ;). The machine on the other send (ftp host) is a windows while this one is a mac. – acidzombie24 Nov 11 '09 at 10:25
Arjan, "wget --no-clobber -c"; will download all files from the FTP site at sunsite, while not clobbering local files. Acidzombie, there are wget binaries available for the Mac (install via Fink) and Windows ( – CarlF Nov 11 '09 at 15:14
Wget for the win! I'm up-voting this one. – pbr Nov 12 '09 at 22:10

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