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Determining the absolute absolute path of a shell script

Posted by Tom on March 30th, 2009 — in Command line, Hacks, Linux, Mac, Programming

In the course of working on projects like server-side Objective-J, jack, and now narwhal, I’ve often had to write shell scripts that needed to know their location in the filesystem. Rather than hardcoding it, I prefer to infer it automatically at runtime. Unfortunately this isn’t as easy as you would expect.

If the script is invoked [...]

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Embedding and loading a JNI library from a jar

Posted by Tom on March 9th, 2009 — in Java, Programming

When I searched for ways to load a JNI library from a jar there were numerous hints of how to do it, but no code that I could find. So here’s my solution:

import java.net.URL; import java.util.zip.ZipFile; import java.io.File; import java.io.FileOutputStream; import java.io.InputStream;

public abstract class UnixDomainSocket {

    static {         try {             // get the class object for this class, and get the location [...]

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