To Validate your Epub :
This will validate all the books in 'Books' directory :
validate-all.sh
For validating single book from 'Books' directory :
validate-single.sh Books/Book-1
To Create EPUB publication directly from the source. There are two sets of shell and batch scripts available at the root of the repository.
The first, pack-all, will build all of the samples:
pack-all.sh
The second script, pack-single, is used to build individual samples:
pack-single.sh Books/Book-1