How do you run script using Oracle SQL Develloper silently?

[kinook]

I downloaded Oracle SQL Developer v1.2.1. When launched without parameters, a GUI app opened, and when launched with sqldeveloper -?, it displayed this message box

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Oracle SQL Developer
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Commands:

-verbose Show JNI options
-client Use Client as the Java VM
-server Use Hotspot Server as the Java VM
--<directive>=<value> Override a directive from the configuration file
-J<flag> Pass <flag> directly to the runtime system
-conf[igure] <file.conf> Use the specified configuration file
-multi Start a new instance
-migrate Migrate user settings from a previous installation

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OK
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I didn't see much more in the help regarding calling it from the command-line, so my guess is that it's not amenable to performing automated SQL statements and is meant to be an interactive tool. At any rate, you should contact Oracle for further information about it.