Packt.epub rename

rename.sh

#!/bin/bash

get_title () {
  attr='title'
  fileloc=`unzip -l "$1" | ggrep -Po '\b[^\s-]*\.opf\b'`
  metafound=`zipgrep  '<dc:'$attr'(.+)>(.+)</dc:'$attr'>' "$1" $fileloc`
  echo `expr "$metafound" : '.*<dc:'$attr'.*>\(.*\)</dc:'$attr'>.*'`
}

for file in $(find . -type f -depth 1 -name "*.epub"); do
  filename=$(get_title "$file")
  mv "$file" "Packt - $filename.epub"
done;