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How to upgrade eclipse in Ubuntu

Download latest Eclipse from the download section of the official website (http://www.eclipse.org/downloads/).
 If you have a previous Eclipse version installed, just move it in a backup folder(Just in case anything goes terribly wrong, you can rollback to running good state).

Older Eclipse can be found in 2 paths: 

 /usr/lib/eclipse  or
 /opt/eclipse

 $ sudo mv /usr/lib/eclipse /usr/lib/eclipse-old
 /usr/lib/eclipse
The package will have the name like:

 eclipse-standard-kepler-SR1-linux-gtk-x86_32.tar.gz

After you have downloaded the correct package, extract the eclipse.XX.YY.tar.gz using

 tar -zxvf eclipse.XX.YY.tar.gz 
Copy the extracted folder to /opt

cp -r eclipse.XX.YY /opt
Create a desktop file in the location /usr/share/applications and install it:

gedit eclipse.desktop
Copy the following to the eclipse.desktop file.
[Desktop Entry]
Name=Eclipse 
Type=Application
Exec=eclipse
Terminal=false
Icon=eclipse
Comment=Integrated Development Environment
NoDisplay=false
Categories=Development;IDE;
Name[en]=Eclipse
Give the desktop file permission to be executed, run:

chmod +x eclipse.desktop
Run the following command to automatically install it in the unity:

desktop-file-install eclipse.desktop
Create a symlink in /usr/local/bin using

cd /usr/local/bin
ln -s /opt/eclipse/eclips
For an eclipse icon to be displayed in dash, eclipse icon can be added as

cp /opt/eclipse/icon.xpm /usr/share/pixmaps/eclipse.xpm
 

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