prerequisite: If Java 8 is not installed, You need to install Oracle JRE/JDK 8+ for Ubuntu

Download aptana studio:
Go to https://github.com/aptana/studio3/releases and download the latest lunux version zip file:
$ wget https://github.com/aptana/studio3/releases/download/3.7.2.201807301111/aptana.studio-linux.gtk.x86_64.zip

Install the unzip Tool:
$ sudo apt install unzip

$ sudo mkdir /opt/aptana-studio

Unzip the downloaded file directly into the Target directory:
$ sudo unzip -d /opt/aptana-studio ./aptana.studio-linux*.zip

Make the file executable
$ sudo chmod +x /opt/aptana-studio/AptanaStudio3
$ sudo chown -R root:root /opt/aptana-studio

$ sudo ln -s /opt/aptana-studio/AptanaStudio3 /usr/local/bin/AptanaStudio3