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#!/usr/bin/env bash
# fix_pages_doc.sh /path/to/document.pages
# See: https://apple.stackexchange.com/questions/150771/how-do-i-convert-old-pages-documents-to-pages-13

FILE="$1"
if [ ! -r "$FILE" ]; then
  echo "File does not exist: [$FILE]"
  exit 1
fi

cd "$FILE"
gunzip --stdout index.xml.gz | sed 's-:version="72007061400"-:version="92008102400"-g' > index.xml
mv index.xml.gz /tmp
cd -
echo "Your .pages file: [$FILE] has been fixed."
open "$FILE"