I ranzip book my/it created a zip file book.zip, but with only my/ as its content, and nothing under its my/, but there is content under ./my/. I wonder how I can zip it correctly?
archive a directory and its content to a zip archive
zip
zip -r book my/-r stands for recursive.man zip (or zip -h in case man pages are not available in your system) may help you understanding other useful options as well.