You are Welcome! The Tutorial shows you Step-by-Step How to Install and Getting-Started with the Latest Eclipse 2023-03 R IDE C/C++ 32bit/64-bit for Fedora 18 i686/x8664 KDE4 Desktop.
There is the Possibility also to Install the Eclipse Standard Platform via YUM and After Add the C++ Development PlugIn.
Hence, here we Proceed Directly to Download and Installation of the Whole Original Eclipse for C/C++ Development Linux Release.
The Content give Focus Only to the Essentials Instructions and Commands to make it Easier to Follow.
To the Guide Bottom you find a Link to Create a Launcher and Hello-World Application Quick Starting.

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Download Eclipse C/C++ Oxygen R IDE:
Eclipse 2023-03 R IDE C/C++ Linux -
Double-Click on Archive and Extract Eclipse into /tmp
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Open Terminal Window
(Press “Enter” to Execute Commands) -
Install Required Packages
su
If Got “User is Not in Sudoers file” then see: How to Enable sudo
sudo yum install gcc-c++
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Relocating Eclipse.
sudo chown -R root:root /tmp/eclipse && mv /tmp/eclipse /opt/
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Starting Eclipse from Terminal.
Making a Symlink
ln -s /opt/eclipse/eclipse /usr/local/bin/eclipse
After you can Start Eclipse from Terminal simply with:
eclipse
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Create an Eclipse Launcher for Easy&Quick-Starting:
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Eclipse C++ Getting-Started SetUp & Hello-World: