Skip the images.

Below is a quick and dirty script I use to make a single HTML file from an EPUB file. It outputs a _script_ that when run will output the HTML files in the EPUB as a single file to stdout. It is not perfect, e.g., sometimes the order of the HTML files may need to be adjusted, but I rarely bother. I open the HTML file in links and optionally save as .txt. I don't care for UTF-8 or other non-ASCII characters.

EPUB to single HTML file.

    #!/bin/sh
    test ${#1} -ge 1||exec echo usage: $0 1.epub;
    printf "(\n"
    for x in ${1-*.epub};do
    echo printf  \'\\n\\n,,,,,,,,,,,,,,,,,,,,, "$x" ,,,,,,,,,,,,,,,,,,,,,,,\\n\\n\'
    7z l $x|sed -n "s/.* /7z x -so $x /;/nav.xhtml/d;/[tx]ml$/p"|sort -n
    done
    echo ")|tr -cd '[\\\12\40-\176]'"