command line to convert all .docx in a directory (and subdirectories) to text file and write new files

I would like to convert all .docx files in a directory (and subdirectories) to text files from the command line (so I can use grep after on these files). I found this

unzip -p tutu.docx word/document.xml | sed -e 's/<\/w:p>/\n/g; s/<[^>]\{1,\}>//g; s/[^[:print:]\n]\{1,\}//g'

here which works well but it sends the file in the terminal. I would like to write the new text file (.txt for instance) in the same directory as the .docx file. And I would like a script to do this recursively.

I have this, using antiword, that do what I want for .doc files but it doesn't work for .docx files.

find . -name '*.doc' | while read i; do antiword -i 1 "${i}" >"${i/doc/txt}"; done

I tried to mix both but without success... A command line that would do both at the same time would be appreciated!

Thank you

Solution

The following script..

converts all docx files in the directory where you run it, recursively (adapt . in find . to your wished starting point)
writes the txt files to where it found the docx file

Bash script:

find . -name "*.docx" | while read file; do
    unzip -p $file word/document.xml |
        sed -e 's/<[^>]\{1,\}>//g; s/[^[:print:]]\{1,\}//g' > "${file/docx/txt}"
done

Afterwards you can run the grep like this:

grep -r "some text" --include "*.txt" .