-repository http://download.eclipse.org/releases/oxygen,http://download.eclipse.org/tools/cdt/releases/9.4,http://download.eclipse.org/modeling/tmf/xtext/updates/composite/releases
-installIU org.eclipse.platform.ide,org.eclipse.jdt.feature.group,org.eclipse.cdt.feature.group,org.eclipse.m2e.feature.feature.group,org.eclipse.egit.feature.group,org.eclipse.xtext.sdk.feature.group,org.eclipse.xtend.sdk.feature.group