Mac osx is similar to linux:
Code:
jmathai@[/Applications/zimbra/zdesktop]: java -cp jetty/lib/log4j-1.2.8.jar:jetty/common/lib/commons-httpclient-3.0.jar:jetty/common/lib/mail.jar:jetty/common/lib/commons-logging.jar:jetty/common/lib/commons-codec-1.3.jar:jetty/common/lib/json.jar:jetty/common/lib/dom4j-1.5.jar:jetty/common/lib/zimbracommon.jar:jetty/webapps/service/WEB-INF/lib/zimbrastore.jar -Dzimbra.config=conf/localconfig.xml com.zimbra.cs.zimlet.ZimletUtil deploy ~/Y/zimlets/com_zimbra_hello.zip
Using zdesktop start/stop didn't work for me as starting seemed to hang. You can right click on the icon in your doc and select shutdown service, and then reopen the app.