#!/bin/bash

function helpexit() {
    echo Print out bibtex entry from a DOI.
    echo Give DOI code as the argument
    exit
}
[[ -z "$1" ]] && helpexit
[[ "$1" = "-h" ]] && helpexit

curl -LH "Accept: text/bibliography; style=bibtex" "http://dx.doi.org/$1"