Thu Oct 21 19:52:00 GMT 2010
The unison2.40 package for Cygwin has been updated. This is a new upstream
release, with minor new features; see
Unison is a file synchronizer for Unix and Windows. It allows two replicas
of a collection of files and directories to be stored on different hosts
(or on different disks on the same host), modified separately, and then
brought up to date by propagating the changes in each replica to the other.
Unison packages in Cygwin
Unison is packaged for Cygwin as several independent packages, each
providing a version of Unison that is incompatible with the others. You
have to run compatible versions of Unison on the client and server, or
Unison will issue an error message and quit. Two versions of Unison are
compatible if and only if the first two numbers in their version strings
are the same. For example, all versions 2.32.* are mutually compatible,
and incompatible with versions 2.27.*. By installing one or more of these
packages side by side, you can use whichever one you need to synchronize
with a particular host. Please read /usr/share/doc/unison*/README.Cygwin
for more details.
The unison* packages install a convenience symlink from /usr/bin/unison to
one of the versioned unison executables, e.g. unison-2.27.exe.
alternatives(8) is used to manage the symlink. If the symlink is being
managed in "auto" mode, then it will automatically track the highest
numbered version of unison that you have installed. You can override this
by either changing the symlink manually with ln(1), or, preferably, by
alternatives --display unison shows you the installed versions of unison,
their priorities, which executable the symlink points to, and whether the
symlink is being managed in "auto" or "manual" mode.
alternatives --config unison presents a menu from which you can choose
which version you want to use as the default. This puts the symlink in
alternatives --auto unison puts the symlink in automatic mode, where it
will always point to the highest numbered version of unison that's
installed on your host.
alternatives --set unison /usr/bin/unison-$V.exe forces the symlink to
point to unison-$V.exe, and puts it in manual mode.
Please see alternatives(8) for more details.
Andrew E. Schulman
To update your installation, click on the "Install Cygwin now" link on
the http://cygwin.com/ web page. This downloads setup.exe to your
system. Then, run setup and answer all of the questions.
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