Search PubMed using esearch, return results as BibTeX

bioruby-pubmed-demo

#!/usr/bin/ruby
# save as pubmed.rb and test using 'ruby pubmed.rb 19662644'
# keyword search may return > 1 record due to retmax bug
# http://github.com/bioruby/bioruby/commit/51c3223e033b2992a7bd95da282f88164406ff92

require 'rubygems'
require 'bio'

keywords = ARGV.join(' ')

options = {
  'retmax' => 1
}

entries = Bio::PubMed.esearch(keywords, options)

entries.each do |entry|
  query   = Bio::PubMed.query(entry)
  medline = Bio::MEDLINE.new(query)
  puts medline.reference.bibtex
end