# E.3 ConcatFilter This filter prepends or appends the content file to the filtered files. ``` <filterchain> <concatfilter prepend="license.txt"/> </filterchain> ``` Table E.3:聽 Attributes for the `<concatfilter>` tag NameTypeDescriptionDefaultRequired`prepend``String`The name of the file which content should be prepended to the file.n/aNo`append``String`The name of the file which content should be appended to the file.n/aNo