UNIX Setup Options

This section details a couple of options for setting up a UNIX environment for launching VTool.

Specify the CLASSPATH on the Command-Line

An alternative method to setting the CLASSPATH variable with all of the tool's dependent JAR files is to specify the java.ext.dirs Java property on the command-line when running the tool each time. This is done by passing the property via the Java "-D" flag as demonstrated in the following example:

% java -Djava.ext.dirs=$HOME/vtool-2.3.0/lib \
gov.nasa.pds.vtool.VTool <command-line arguments>
        

Specify the JAR on the Command-Line

Another alternative method is to specify the executable JAR file on the command-line when running the tool each time. This is done by passing the JAR file specification via the Java "-jar" flag as demonstrated in the following example:

% java -jar $HOME/vtool-2.3.0/lib/vtool-2.3.0.jar <command-line arguments>