How to use shell magic to create a recursive etags using GNU etags?

Question

The standard GNU etags does not support a recursive walk of directories as done by exuberant ctags -R. If I only have access to the GNU etags, how

Answer 1

This command creates etags file with default name "TAGS" for .c, .cpp, .Cpp, .hpp, .Hpp .h files recursively

find . -regex ".*\.[cChH]\(pp\)?" -print | etags -