How to export all applications of an Oracle APEX Workspace:

export CLASSPATH=.:/app/oracle/product/11.2.0/dbhome_1/jdbc/lib/ojdbc5.jar:/app/apex/utilities

java oracle.apex.APEXExport -db localhost:1521:ORCL -user system -password -workspaceid 2097002597188478

/app/apex ==> Oracle APEX Installation-Directory