Since Aptana runs on JDK, we need to install JDK first on Linux.
Search for JDK packages.
[root@localhost ~]# yum search jdk
...
[root@localhost ~]# yum info java-1.7.0-openjdk
...
Install JDK 1.7.
[root@localhost ~]# yum install java-1.7.0-openjdk
...
Download Aptana Studio 3.
[root@localhost tmp]# cd /tmp
[root@localhost tmp]# wget http://download.aptana.com/studio3/standalone/3.4.1/linux/Aptana_Studio_3_Setup_Linux_x86_64_3.4.1.zip
...
Unzip Aptana Studio 3
[root@localhost tmp]# unzip Aptana_Studio_3_Setup_Linux_x86_64_3.4.1.zip
inflating: ...
...
[root@localhost tmp]# ls -l
...
drwxrwxr-x. 9 root root 4096 Jun 7 18:56 Aptana_Studio_3
...
Move the unzipped directory to /usr/local
[root@localhost tmp]# mv Aptana_Studio_3 /usr/local/
[root@localhost tmp]# cd /usr/local/Aptana_Studio_3/
[root@localhost Aptana_Studio_3]# ls
about_files AptanaStudio3.ini configuration features libcairo-swt.so plugins
about.html AptanaStudio3.sh dropins full_uninstall.txt notice.html readme
AptanaStudio3 artifacts.xml epl-v10.html icon.xpm p2 version.txt
Create a desktop entry in GNOME.
[root@localhost Aptana_Studio_3]# vi /usr/share/applications/aptana-studio-3.desktop
#Add following text in the file.
[Desktop Entry]
Name=Aptana Studio 3
Exec=/usr/local/Aptana_Studio_3/AptanaStudio3
Icon=/usr/local/Aptana_Studio_3/icon.xpm
Type=Application
Categories=Development
Try this entry by yourself.