Install the last version of tesseract on debian 11

 Get the latest version number from here and update v variable in the following gist:

v=4.1.1

apt-get install g++ autoconf automake libtool pkg-config libpng-dev libjpeg62-turbo-dev libtiff5-dev zlib1g-dev libleptonica-dev -y

cd /usr/src

wget https://github.com/tesseract-ocr/tesseract/archive/$v.tar.gz

tar -zxvf $v.tar.gz

cd tesseract-$v

./autogen.sh

./configure --prefix=/usr/local

make

make install

wget https://github.com/tesseract-ocr/tessdata/raw/master/eng.traineddata -O /usr/local/share/tessdata/eng.traineddata