Updating eclipse features/plugins from terminal

Format:

./eclipse -clean -purgeHistory -application org.eclipse.equinox.p2.director -noSplash -repository <update site url> -installIUs <feature ID> 

Examples:

./eclipse -clean -purgeHistory -application org.eclipse.equinox.p2.director -noSplash -repository http://download.eclipse.org/recommenders/updates/stable/ -installIUs org.eclipse.recommenders.repositories.categories.deps 

./eclipse -clean -purgeHistory -application org.eclipse.equinox.p2.director -noSplash -repository http://download.eclipse.org/mylyn/releases/latest -installIUs org.eclipse.mylyn.commons.sdk.feature.group

./eclipse -clean -purgeHistory -application org.eclipse.equinox.p2.director -noSplash -repository http://download.eclipse.org/mylyn/releases/latest -installIUs org.eclipse.mylyn.commons.notifications.feature.group

./eclipse -clean -purgeHistory -application org.eclipse.equinox.p2.director -noSplash -repository http://download.eclipse.org/modeling/emf/updates/releases/ -installIUs org.eclipse.emf.databinding.edit.feature.group

Resources:

http://www.lorenzobettini.it/2012/10/installing-eclipse-features-via-the-command-line/