通过Ruby连接到HSQL并关闭服务器

我正试图编写一个Ruby脚本来杀死本地主机上的数据库服务器

当我运行“ant hsql”时，它会启动数据库（下面的输出），我必须保持终端窗口打开。 Buildfile:/Users/cparaiso/dev/src/testproject src/build.xml

hsql:

install-parent-pom:
[artifact:install] [INFO] Installing /Users/cparaiso/dev/src/testproject-src/pom.xml to /Users/cparaiso/.m2/repository/org/jasig/portal/uportal-parent/4.0.3/uportal-parent-4.0.3.pom
    [touch] Creating /var/folders/8v/1k2gkj412q1_8084x6lvtbqr0000gn/T/jasig/uportal-parent.pom-110044247-marker
     [echo] Starting HSQL on 8887
     [echo] Using: file:/Users/cparaiso/dev/src/testproject-src/data/uPortal
     [java] [Server@6f507fb2]: [Thread[main,5,main]]: checkRunning(false) entered
     [java] [Server@6f507fb2]: [Thread[main,5,main]]: checkRunning(false) exited
     [java] [Server@6f507fb2]: Startup sequence initiated from main() method
     [java] [Server@6f507fb2]: Could not load properties from file
     [java] [Server@6f507fb2]: Using cli/default properties only
     [java] [Server@6f507fb2]: Initiating startup sequence...
     [java] [Server@6f507fb2]: Server socket opened successfully in 10 ms.
     [java] [Server@6f507fb2]: Database [index=0, id=0, db=file:/Users/cparaiso/dev/src/testproject-src/data/uPortal, alias=uportal] opened sucessfully in 377 ms.
     [java] [Server@6f507fb2]: Startup sequence completed in 388 ms.
     [java] [Server@6f507fb2]: 2012-03-07 15:32:25.198 HSQLDB server 2.2.8 is online on port 8887
     [java] [Server@6f507fb2]: To close normally, connect and execute SHUTDOWN SQL
     [java] [Server@6f507fb2]: From command line, use [Ctrl]+[C] to abort abruptly

我的问题是如何在不使用Ruby中的kill命令终止进程的情况下关闭服务器

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如果我试图通过kill命令终止进程，我会得到“buildfailed”，它会被卡住，直到我按Ctrl+C键退出。这不是我想要的。有什么想法吗？TIA

我不知道如何在Ruby中发出SQL语句，但是如果连接到数据库服务器并发出SQL语句

SHUTDOWN

，它将关闭服务器进程