Upgrade/Update Intellij 12

Solution 1:

Intellij requires root permissions for the built in update function to work.

1. Either start using sudo:

   sudo /opt/intellij-idea-ce/bin/idea.sh
   

   or give all users the ability to update Intellij, then start as yourself:

   sudo chmod -R o+rw /opt/intellij-idea-ce
   /opt/intellij-idea-ce/bin/idea.sh
   

2. Then restart the IDE, click 'Help', 'Check for updates...'

Solution 2:

Just download the .zip, extract it, and run bin/idea.sh. Your previous settings etc should be retained when you run the new version.

If oracle jdk/jvm is not available on the path, you may need to specify the path to it directly. Place the following in idea.sh, as the first line:

export IDEA_JDK=/usr/lib/jvm/jdkxxxxx

(Put your own path to the jdk in there)