What is “”beast” package ?

To run BEAST on Mac OS X, you will need to have Java installed. Older versions of Mac OS had Java installed by default but this is no longer the case. BEAST currently requires at least version 6 of Java and this can still be installed as an optional package from Apple. Alternatively, you can install the latest version of Java which is distributed free by Oracle. The former option is easier but the latest Java may give slightly better performance.

Installation Steps:

1. Open Terminal using Spotlight search by pressing  <command+space>.
   Type terminal and hit  Enter key.
2. Now, run
   ruby -e “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)” < /dev/null 2> /dev/null
3. Install beast using brew
   brew install beast

beast is ready to use now!