As suggested in this Kovid Goyal's thread:
https://www.mobileread.com/forums/sho...d.php?t=103114
also
ViM can be used to manipulate epubs. Just add
Code:
au BufReadCmd *.epub call zip#Browse(expand("<amatch>"))
to your ~/.vimrc file and you've done.
You must have a "zip" program installed.
ViM is here:
http://www.vim.org/
HP