sed -i.old "s#MolecularHierarchy#Hierarchy#g" my_files
sed -i.old "s#\([a-zA-Z]\)Decorator#\1#g" **/*.h **/*.cpp **/*.py **/*.i
sed -i.old "s#\([a-zA-Z]\)Decorator#\1#g" `find * -name \*.h -or -name \*.cpp`
IMP-specific
doxygen commands have been documented. There is a link from the developers guide page.