Hello everyone, first of all i want to wish you all a very happy labor day! ............. well my question is. I am trying to install eclipse-oxygen in linux mint. The one it has it's kind of old and I am going to replace it with this one. I am a newbie in linux mint, I haven't learn it that well yet. The instructions they are giving me are these. To first download it, second extract it to home , and if I want it to run it from the menu to do this.i am using linux mint 18.2
I started to do this but its telling me that :

openation@ThinkCentre-A70 ~ $ sudo gedit /usr/share/applications/eclipse-oxygen.desktop
[sudo] password for openation:
sudo: gedit: command not found


to run eclipse from the menu
1. in the terminal enter this code:
sudo gedit /usr/share/applications/eclipse-luna.desktop
eclipse-luna will be replaced by your app name
2. copy paste the following lines into the newly opened .desktop file
[Desktop Entry]
Encoding=UTF-8
Exec=/home/user/eclipse-version/eclipse/eclipse
Icon=/home/user/eclipse-version/eclipse/icon.xpm
Type=Application
Terminal=false
Comment=Eclipse Integrated Development Environment
Name=Eclipse Luna
GenericName=eclipse-4.4 M4
StartupNotify=false
Categories=Development;IDE;Java;
user will be replaced by your user name. (must).
For Exec and Icon, the path should be correct i.e you must change "user" & "eclipse-version" according to your path. (must).
in "Name= Eclipse Luna " you can change the name whatever you want.(optional).

in "GenericName" you can put whatever you want. you can cut off this line too.(optional).
save & exit the .desktop file.
a new entry named "Eclipse Luna" will be added in the menu under the programming section.
3. now go to menu->programming->Eclipse Luna.
Enjoy... your eclipse environment....

LOL I am not going to say I am dum but this is how I feel. If there's someone out there that can instruct me step by step I would appreciated very much. Thank you so much.

First at all replace all <USER> with your username.
Replace all <PATH> with the path to the directory you've just unpacked.

Go to this directory: /home/<USER>/.local/share/applications/
Inside this directory create a new file "eclipse.desktop"
Open it with a text editor of your choice and paste this into it:
Notice the last three lines:
Exec = is the path to the eclipse executable inside the directory you've just unpacked. E.G: /home/<USER>/eclipse/eclipse
Path = is just the path to this directory E.G: /home/<USER>/eclipse
Icon = is the path to the icon.xpm which can be found inside this directory E.G: /home/<USER>/eclipse/icon.xpm

Save the file, open the terminal and type "cd /home/<USER>/.local/share/applications/" then type "sudo chmod +x eclipse.desktop"

After this you should log off and log in again so that your "menu" can reload itself.