The xtuple-admin-utility shell script accepts a number of arguments so that you can execute xTuple installations non-interactively. Here are all the command line arguments and their uses.
To get an interactive menu run xtuple-utility.sh with no arguments -h Show this message -a Install all (PostgreSQL (currently 9.3), demo database (currently 4.8.1) and web client (currently 4.8.1)) -d Specify database name to create -p Override PostgreSQL version -n Override instance name -x Override xTuple version (applies to web client and database) -t Specify the type of database to grab (demo/quickstart/empty)
To run a full installation of xTuple, including demo database and web client, navigate to the xtuple-utility directory and type this command
./xtuple-utility.sh -a