HERE _DOC(just "a" (sim,ple) test) HERE _DOC(<<>>) HERE _DOC(<<>>) HERE _DOC(<<< note the /quoting/ and \ponder\ that in m4 the closing > in xml is nonetheless retained>>>) The penultimate test to include another M4 file HERE _FILE(qxpath_test.txt) The ultimate test to include this file HERE _FILE(heredoc_test.txt)