rsync is a replacement for rcp that has many more features.
rsync uses the "rsync algorithm" which provides a very fast method for
bringing remote files into sync. It does this by sending just the
differences in the files across the link, without requiring that both
sets of files are present at one of the ends of the link beforehand.
At first glance this may seem impossible because the calculation of
diffs between two files normally requires local access to both
The EMX runtime environment 0.9d (or later) is
needed for usage with OS/2.
Usage on Windows
You can run the executable under Windows9x/NT too, using RSX
1.50 (or later) instead of EMX. But I don't recommend to use my port
under windows, since there are better working ports using Cygwin.
wrote a really helpful page called "Installing ssh and
rsync on a Windows machine" which contains a step by step
installation description and links to several windows ports.
The current port has several limitations:
- You can receive files only on devices which support long filenames.
- The rsync port does not work in daemon mode. Thus the --daemon option
is not available.
- The server mode seems to have bugs. I'm not sure whether these bugs
can be fixed in rsync since the problem might be the OS/2 rshd.
The zip archive contains the executable and the complete (patched)
sourcecode: rsync-2.2.1.zip (354KB)
Feedback and Bug Reports
Please send questions and bug reports regarding the OS/2 port to
For other Bugs please look at
if you have web access.
This will give you access to the bug tracking system used by the
developers of rsync and will allow you to look at other bug reports or
submit a new bug report.
If you don't have web access then mail bug reports to email@example.com or (if you
think it will be of interest to lots of people) send it to firstname.lastname@example.org
There is a mailing list for the discussion of rsync and its
applications. It is open to anyone to join. I will announce new
versions on this list.
To join the mailing list send mail to email@example.com with
no subject and a body of "subscribe rsync Your Name".
To send mail to everyone on the list send it to
The unmodified source is available from the rsync-Homepage.
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