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Ignoring already copied files

 
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Old 04-30-2008
Ignoring already copied files
I'm almost brand new to UNIX, so I have no idea if how easy or difficult this would be, or if it's even possible.

I've been using FTP to copy a total of about 150gb of files to a remote drive. Since the directory being copied is so large, I've been trying to break it up into smaller chunks based on file names and file extensions, but I'm still running into some timing problems, where I'll have started it first thing in the morning, and it'll only be a quarter or so done by the end of the day, and if I try to start again the next day, it'll start at the very beginning of the directory and just copy files that have already been copied

My question is would there be any way to get around this? Would it be possible to somehow start the FTP session and skip copying the files already in the new drive?

Thanks
 
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LEARN ABOUT BSD

tftp

TFTP(1) 						      General Commands Manual							   TFTP(1)

NAME

       tftp - trivial file transfer program

SYNOPSIS

       tftp [ host ]

DESCRIPTION

       Tftp is the user interface to the Internet TFTP (Trivial File Transfer Protocol), which allows users to transfer files to and from a remote
       machine.  The remote host may be specified on the command line, in which case tftp uses host as the default host for future transfers  (see
       the connect command below).

COMMANDS

       Once tftp is running, it issues the prompt tftp> and recognizes the following commands:

       connect host-name [ port ]
	      Set  the	host (and optionally port) for transfers.  Note that the TFTP protocol, unlike the FTP protocol, does not maintain connec-
	      tions betweeen transfers; thus, the connect command does not actually create a connection, but merely remembers what host is  to	be
	      used  for  transfers.   You  do not have to use the connect command; the remote host can be specified as part of the get or put com-
	      mands.

       mode transfer-mode
	      Set the mode for transfers; transfer-mode may be one of ascii or binary.	The default is ascii.

       put file
       put localfile remotefile
       put file1 file2 ... fileN remote-directory
	      Put a file or set of files to the specified remote file or directory.  The destination can be in one of two forms: a filename on the
	      remote  host,  if  the host has already been specified, or a string of the form host:filename to specify both a host and filename at
	      the same time.  If the latter form is used, the hostname specified becomes the default for future transfers.  If	the  remote-direc-
	      tory form is used, the remote host is assumed to be a UNIX machine.

       get filename
       get remotename localname
       get file1 file2 ... fileN
	      Get  a  file  or	set of files from the specified sources.  Source can be in one of two forms: a filename on the remote host, if the
	      host has already been specified, or a string of the form host:filename to specify both a host and filename at the same time.  If the
	      latter form is used, the last hostname specified becomes the default for future transfers.

       quit   Exit tftp.  An end of file also exits.

       verbose
	      Toggle verbose mode.

       trace  Toggle packet tracing.

       status Show current status.

       rexmt retransmission-timeout
	      Set the per-packet retransmission timeout, in seconds.

       timeout total-transmission-timeout
	      Set the total transmission timeout, in seconds.

       ascii  Shorthand for "mode ascii"

       binary Shorthand for "mode binary"

       ?  [ command-name ... ]
	      Print help information.

BUGS

       Because there is no user-login or validation within the TFTP protocol, the remote site will probably have some sort of file-access restric-
       tions in place.	The exact methods are specific to each site and therefore difficult to document here.

4.3 Berkeley Distribution						1Q								   TFTP(1)