Use EPUBCheck to validate an epub file

[atc0005]

cd /tmp
wget https://github.com/w3c/epubcheck/releases/download/v4.2.4/epubcheck-4.2.4.zip
unzip epubcheck-4.2.4.zip
cd epubcheck-4.2.4/
wget https://github.com/quii/learn-go-with-tests/releases/download/11.1.2/learn-go-with-tests.epub
java -jar epubcheck.jar learn-go-with-tests.epub

Refs:

• https://gist.github.com/atc0005/980ede5d564d64ac16ac6eabc0cd057e
• https://github.com/w3c/epubcheck