installing eclipse-mars error linux ubuntu Error - linux

I've downloaded Eclipse with c/c++ through ubuntu, virtual machine running on windows 8 with yoga-2 pro computer. this is the folder I have right now in my downloads folder, with a zip and an extracted folder.
Now I navigate to that folder and run command:
tar -zxvf eclipse-cpp-mars-2-linux-gtk-x86_64.tar.gz
I see some kind of weird Eclipse, something like "an eclipse astronomical event.." and I don't understand how to open it.
...HELP?

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How to setup Windows Subsystem Linux (WSL 2) with VSCodium on Windows 10

So I am using Ubuntu Linux terminal(also have Debian) in windows 10. according to this site:
https://medium.com/nerd-for-tech/how-to-setup-windows-subsystem-linux-with-visual-studio-code-on-windows-10-b06fdbe9b30b
you need Remote - WSL extention to connect with VScode, I am using VSCodium.
So my question is can I install Remote - WSL extention on VSCodium.
Or are there any alternatives to configure it without this extension.I saw on VSCodium market and there is no Remote - WSL.
My purpose is with Ubuntu or Debian terminal to create folders and files such html,css,js.
I can do all this by entering in desktop environment :
cd /mnt/c/Users/<username>/Desktop
and also can use this commands:
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cd
cd ..
clear
cd /
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touch
mv
My problem is that I can not open created folder or any app(including VSCodium), for example open existing folder using this command:
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this commands are not working.can you help with that?
how can I open created folder,file or app using terminal.
Is there any extension to connect VSCodium to my WSL2 and do all commands above?
You cannot legally use any of the MS "Remote" extensions as they are closed source and cannot legally be installed on anything other than Microsoft Visual Studio Code, as per the license.
AFAIK there is no open source alternative yet.

Eclipse command not found in linux while in the eclipse folder

I downloaded the correct version of eclipse that will work on my linux machine from the website. The structure looks like this: eclipse/eclipse. I was in the eclipse folder, and I typed in eclipse in linux to start the IDE. It showed the error: eclipse command not found.
This is normal. For safety, the current directory is not part of the path used to find executables. Use ./eclipse to refer to the binary explicitly.

Unable to use Eclipse on Linux Unity

I'm new to Linux. I'm trying to install Eclipse, but it won't let me extract the files.
I have eclipse-jee-mars-R-linux-gtk.tar.gz open under "Network". Inside that I have an eclipse folder. I click on that and I'm unable to click eclipse, the icon is paper with binary on it(so is a bunch of other files.
Im on a chromebook and I've installed Linux Unity.
EDIT: Ive now been able to unzip the file. But now when I click the Eclipse.exe, nothing happens.
Unpack it with
tar xvzf eclipse-jee-mars-R-linux-gtk.tar.gz
Then go to the eclipse-folder and start it with
./eclipse
from the shell. That should give you some information, if it's not successful.
Maybe you have to make it executable before. To do so type
chmod +x eclipse
If you have downloaded a linux version, there should be nothing like "eclipse.exe".

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I just installed Ubuntu and then downloaded a version of Java 7 and extracted it to where I want JAVA_HOME. I then added JAVA_HOME as an env var and exported it to PATH. I'm now trying to install Eclipse 4.2 (Juno) from the Older Versions link (specifically this).
When I download the TAR and extract it to where I want ECLIPSE_HOME to be, it extracts a directory named eclipse. When I drop into this directory, I see an executable also called eclipse. When I double-click this I get the following error:
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Update
Here's what I put in my ~/.bashrc file:
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I was actually trying to open web2py from cygwin command prompt. Instead I used Windows CMD (after a day's crash course on it) and have been able to open web2py from the WCMD. I simply cd'd to the directory web2py was (I moved it from Downloads to drive C), then ran the -S projectname command, and voila, my project has been created and I'm able to work from the WCMD.Please I may be asking more questions as my journey progresses. Thanks to Regexident for your swift attempt to help!

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