Step by step – Eclipse C/C++ Kubuntu 20.04 Installation

Installing

2. 2. Downloading Eclipse C/C++ IDE

   Download Eclipse IDE 2025-06 R C

   Eclipse IDE 2025-06 R C Linux

   Select the GNU/Linux Release from the List Contained

   Skip the Eclipse Installer and Get the Eclipse Binaries…

3. 3. Extracting Eclipse C/C++ IDE

   Then Extract Eclipse into /tmp
   Possibly Double-Click/Right-Click and Open with Archive Manager:

   
   Or from Command Line:

   tar xvzf $HOME/Downloads/eclipse*.tar.gz -C /tmp/

4. 4. Installing Eclipse C/C++ IDE

   Then to Install Eclipse for C IDE
   First, Set Ownership to the SuperUser with:

   sudo chown -R root:root /tmp/eclipse

   Authenticate with the User Admin Pass.
   If Got “User is Not in Sudoers file” then see: How to Enable sudo
   And then Switch the Eclipse contents:

   sudo mv /tmp/eclipse /opt/

   Finally, make a Symlink for Easy Launching from Shell:

   sudo ln -s /opt/eclipse/eclipse /usr/local/bin/eclipse