#!/bin/bash ACTION="$1" PACKAGE_LIST="ocrfeeder tesseract-ocr tesseract-ocr-eng tesseract-ocr-osd tesseract-ocr-cat tesseract-ocr-spa" case $ACTION in remove) for ix in $PACKAGE_LIST do apt-get remove -y $ix TEST=$( dpkg-query -s $ix 2> /dev/null| grep Status | cut -d " " -f 4 ) if [ "$TEST" == 'installed' ];then exit 1 fi done ;; esac exit 0