tar -zxvf eclipse-java-luna-SR1-linux-gtk-x86_64.tar.gz -C /opt ln -s /opt/eclipse/eclipse /usr/bin/eclipse vi /usr/share/applications/eclipse.desktop
following is the content of eclipse.desktop
[Desktop Entry] Encoding=UTF-8 Name=Eclipse 4.4.1 Comment=Eclipse Luna Exec=/usr/bin/eclipse Icon=/opt/eclipse/icon.xpm Categories=Application;Development;Java;IDE Version=1.0 Type=Application Terminal=0
by the way note some about [sodo] command:
# visodo
then find "root ALL = (ALL)"
copy it new a line "yourusername ALL = (ALL)"
then you can use sudo,
but somehow is not a profit way grant all to ..