# E.2 ExpandProperties The ExpandProperties simply replaces property names with their property values. For example, if you have the following in your build file: ``` <property name="description.txt" value="This is a text file" /> <copy todir="/tmp"> <filterchain> <expandproperties /> </filterchain> <fileset dir="."> <include name="**" /> </fileset> </copy> ``` And the string `${description.txt}` it will be replaced by `This is a text file`. Table E.2:聽 Attributes for `<expandproperties>` NameTypeDescriptionDefaultRequired`level``String`Control the level at which this message is reported. One of `error`, `warning`, `info`, `verbose`, `debug`.`info`No