Welcome to Excalibur CLI! As always, the if you have any questions : 1) Make sure you followed any directions 2) Review documentation included in this package, or online at http://jakarta.apache.org/avalon/excalibur 3) Ask on the avalon-dev list. This is a great source of support information. To join, read http://jakarta.apache.org/site/mail.html and then follow the link at the bottom to join the lists. option_arguments ---------------- This simple example shows how to have options, requiring an argument, optionally supporting an argument or requiring 2 arguments. Compile it by running javac -classpath ../../build/lib/@dist.name@.jar *.java (Unix) or javac -classpath ..\..\build\lib\@dist.name@.jar *.java (Windows) Run it using the scripts provided: java -classpath ../../build/lib/@dist.name@.jar:. OptionArguments (Unix) or java -classpath ..\..\build\lib\@dist.name@.jar;. OptionArguments (Windows) Arguments to try -f -f x -f x -S -S -Sx -Ds -Ds=x -D s x -D