$ jar cfe ~/blah.jar javaborg_irc.Main -C ./bin/ . ./lib/jerklib.jar
-----------------------------
$ jar tf ~/blah.jar
META-INF/
META-INF/MANIFEST.MF
javaborg_irc/
javaborg_irc/Main.class
javaborg_irc/IrcHandler.class
javaborg/
javaborg/Dictionary.class
javaborg/JavaBorg.class
lib/
lib/jerklib.jar

============================
...
jerklib/
jerklib/Channel$1.class
jerklib/Channel$2.class
jerklib/Channel.class
jerklib/Connection$1.class
jerklib/Connection.class
jerklib/ConnectionManager$1.class
jerklib/ConnectionManager$2.class
jerklib/ConnectionManager.class
jerklib/DefaultInternalEventHandler$1.class
jerklib/DefaultInternalEventHandler$2.class
jerklib/DefaultInternalEventHandler$3.class
jerklib/DefaultInternalEventHandler$4.class
jerklib/DefaultInternalEventHandler$5.class
jerklib/DefaultInternalEventHandler$6.class
jerklib/DefaultInternalEventHandler$7.class
jerklib/DefaultInternalEventHandler$8.class