05-11-2013
It would help if you tell what file systems are used on the source and destination machines, what Unix OS is used, and what method you plan to use to perform the copy.
In any case, "du" is the wrong tool to check the proper copy.
If you really want to make sure all the files are copied without any corruption, create a hash/checksum of every file on the source side and use it to check it is correct on the destination one for each file.
You would also need to make sure all (empty) directories are created and possibly decide what to do with files taht are neither plain files nor directories.
Finally, you might also want to check the permissions, owner/group, extended attributes and ACLs if any.
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uuto(1) General Commands Manual uuto(1)
NAME
uuto, uupick - public UNIX system to UNIX system file copy
SYNOPSIS
[options] source-files destination
system]
DESCRIPTION
sends source-files to destination. uses the facility to send files (see uucp(1)), while allowing the local system to control the file
access. A source-file name is a path name on your machine. Destination has the form:
where system is taken from a list of system names that knows about (see in uucp(1) manual entry). user is the login name of someone on the
specified system.
recognizes the following options:
Copy the source file into the spool directory immediately,
and send the copy.
Send mail to the requester when the copy is complete.
The files (or sub-trees if directories are specified) are sent to PUBDIR on system, where PUBDIR is the UUCP public directory Specifically
the files are sent to
PUBDIR
The recipient is notified by electronic mail when the files arrive.
accepts or rejects the files transmitted to the recipient. Specifically, searches PUBDIR for files destined for the user. For each entry
(file or directory) found, the following message is printed on the standard output:
file-name] dirname]
then reads a line from the standard input to determine the disposition of the file:
<new-line> Go on to next entry.
Delete the entry.
Move the entry to named directory
dir (current directory is default). Note that, if the current working directory is desired for dir, do specify any
parameter with A construction such as is erroneous, and results in loss of data.
Same as except move all the files sent from system.
Print the contents of the file.
Stop.
EOT (control-D) Same as
Escape to the shell to execute
command.
Print a command summary.
invoked with the option searches only the PUBDIR for files sent from system.
WARNINGS
To send files that begin with a dot (such as the filename must contain a corresponding dot. For example: and are correct, whereas and are
incorrect.
FILES
PUBDIR public directory
SEE ALSO
mail(1), uuclean(1M), uucp(1), uustat(1), uux(1).
Tim O'Reilly and Grace Todino,
O'Reilly & Associates, Inc. USA.
Grace Todino and Dale Dougherty,
O'Reilly & Associates, Inc. USA.
STANDARDS CONFORMANCE
uuto(1)