I just downloaded sublime text editor but I seem not to know the right app to open it with in order to install it
Run the following commands one after another to install sublime text from the terminal:
sudo add-apt-repository ppa:webupd8team/sublime-text-3 sudo apt-get update sudo apt-get install sublime-text-installer
After that you will find Sublime Text 3 from
Menu->Accessories->Application Finder and search for
Sublime Text. Then you can drag and drop it on the taskbar. You can also open it from the terminal using
subl [nameOfTheFile.ext]. Type the name of the file if you want to open it or create a file with that name. Then each time you run
sudo apt-get upgrade thereof) Sublime Text will be updated to the latest version.