1. Install the prerequisites
sudo apt-get install openjdk-7-jdk libjpeg62 libwebkitgtk-1.0-0 git-core
sudo apt-get install libjpeg62 libwebkitgtk-1.0-0 git-core
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer
libjpeg62 is important, without it you will get errors like this:
An internal error has occurred. No more handlesNative code library failed to load. (java.lang.UnsatisfiedLinkError: /opt/Aptana_Studio_3/plugins/com.aptana.swt.webkitbrowser.linux.x86_64_1.0.0.1295409059/os/linux/x86_64/libcefjni.so: libjpeg.so.62: cannot open shared object file: No such file or directory)
2. Download Aptana Studio
You can download Aptana Studio 3 here. Select the “Standalone Version” if not selected and click download.
3. Extract Aptana Studio**
sudo unzip [name of Aptana Studio ZIP file here].zip -d /opt
4. Add the menu shortcut
wget http://www.samclarke.com/wp-content/uploads/2012/04/AptanaStudio3.desktop
sudo mv AptanaStudio3.desktop /usr/share/applications/AptanaStudio3.desktop