<p>Since we cannot setup Eclipse's RSE to use at the tool for remote editing, I have installed <a href="http://www.cis.upenn.edu/~bcpierce/unison/docs.html" rel="nofollow noreferrer">Unison</a>. But how can I get Eclipse to automatically run unison on every file save? Is there an eclipse plugin available for this?</p>

<p>TIA</p>

Depending on the importance, I would write a simple plugin to handle this.
EDIT:
All you
really
need to do is this:
1) Create the plugin from the templates with the RCP\PDE Eclipse install
2) Add the following code to your activator...
```
```
@Override
public void start( final BundleContext context ) throws Exception {
    super.start( context );
    plugin = this;

    ICommandService commandService = (ICommandService)plugin.getWorkbench().getService( ICommandService.class );
    commandService.addExecutionListener( new IExecutionListener() {

        public void notHandled( final String commandId, final NotHandledException exception ) {}

        public void postExecuteFailure( final String commandId, final ExecutionException exception ) {}

        public void postExecuteSuccess( final String commandId, final Object returnValue ) {
            if ( commandId.equals( "org.eclipse.ui.file.save" ) ) {
                // add in your action here...
                // personally, I would use a custom preference page, 
                // but hard coding would work ok too
            }
        }

        public void preExecute( final String commandId, final ExecutionEvent event ) {}

    } );
}
```
```