using google, I found that one :
<a href="http://ant.apache.org/manual/index.html<a href="http://supportweb.cs.bham.ac.uk/documentation/tutorials/docsystem/build/tutorials/ant/ant.html" target="_blank" rel="nofollow">Ant" target="_blank">
http://ant.apache.org/manual/index.html[URL=http://supportweb.cs.bham.ac.uk/documentation/tutorials/docsystem/build/tutorials/ant/ant.html]Ant Tutorial
it looks quite nice. First read a little bit about it, and once you understand how it works(~1,2 weeks), you will be able to use the reference manual
Reference manual