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#!/bin/sh
# Give this script a .pdf and it will attempt
# to return a proper .bib citation via doi.
# Internet connection required.
if [ -f "$1" ];
then
# Get the doi from metadata, if not possible, get
# doi from pdftotext output, if not possible, exit.
doi=$(pdfinfo "$1" | grep -io "doi:.*") ||
doi=$(pdftotext "$1" 2>/dev/null - | grep -o "doi:.*" -m 1) ||
exit 1
else
# If not given file, assume argument is doi
doi="$1"
fi
# Check crossref.org for the bib citation.
curl -s "http://api.crossref.org/works/$doi/transform/application/x-bibtex" -w "\\n" |
sed -e "/^[^\\(\\t\\|@\\|}\\)]/d"
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