rsync: Using rsync with puttyagent on Windows


the often called question: Can I run rsync on Windows by using the putty agent?

Answer: Yes, but there a some steps to setup such an environment.

I’m assuming you aleady have putty installed at your computer. In this example the putty tools like plink etc. are downloaded to D:\tools\putty.

First of all install cygwin’s rsync:

  • Download install cygwin it from the Internet
  • Choose a (root) Install directory, i.e. D:\tools\cygwin
  • Choose the directory where the files should downloaded to
  • From the packages list choose
    Net / rsync (latest version, here 3.2.3)
    Devel / gcc-core (latest stable version, here 10.2.0)
  • Add an Icon to the startmenu to be able to start the cygwin terminal

when the installation finishs rsync could be found at


Then you need cygnative because there is an incompatibility of stdin/stdout redirection between cygwin and native Win32 programs. I will place it in the putty directory (curl is already included in newer Windows 10 releases)
Download cygnativ source

D:\> cd D:\tools\putty
D:\tools\putty> curl -o cygnative.c

If you want to call cygwin commands (gcc, rsync) from a cmd shell you must add the cygwin bin folder and the putty folder to the path variable otherwise you have to specify the full path (in cygwin notation) to cygnative and plink for the rsync -e (–rsh) parameter.

D:\tools\putty> set PATH=%PATH%;D:\tools\cygwin\bin;D:\tools\putty;

Compile cygnative

D:\tools\putty> D:\tools\cygwin\bin\gcc.exe cygnative.c -o cygnative.exe
D:\tools\putty> cygnative.exe
cygnative - a programm to use stdin/stdout redirection
on native win32 programms called from cygwin
(C) Copyright 2009, Frank Behrens, Version 1.2
Usage: cygnative  [args...]

Now you can call rsync. The local directory must be given in cygwin notation. For D:\Temp you have to use /cygdrive/d/Temp/. Use the cygwin terminal to determine the correct path.

D:\tools\putty> rsync -args -e="cygnative plink" /cygdrive/d/Temp/ michael@


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