Cli grep through djvu files

Question

How can I grep through djvu files? They are text files with some images in it. Is there some equivalent to pdfgrep tool?

Maybe there is some better utility for this, but djvutxt extracts the text layer (if there is one) and you can pipe that to grep. — njsg, Jul 15 '17 at 13:59
Technically, if they contain images they are not text files. — Jan, Jul 15 '17 at 18:13

score 0 · Answer 1 · answered Jun 17 '21 at 21:29

I installed djvutxt and then I use below script to search. I'm sure it can be improved. I tried a lot of find with exec and xarg commands with better or worse results. This seems to be working best for me.

 find . -iname "*djvu" | \
  while read I; do
   echo "$I"
   djvutxt "$I" | grep -i $1
  done

save as grepdjvu.sh and run as bash grepdjvu.sh text_to_find.

I copied this script from here https://unix.stackexchange.com/a/50319/322998 and modified.

Cli grep through djvu files

1 Answers1