def usearch
@command << "usearch --query #{@infile} --db #{@options[:database]} --userout #{@outfile}"
@command << "--userfields target+tloz+thiz+query+bits+strand"
- @command << "--id #{@options[:identity]}" if @options.has_key? :identity
- @command << "--evalue #{@options[:e_val]}" if @options.has_key? :e_val
+ @command << "--id #{@options[:identity]}" if @options[:identity]
+ @command << "--evalue #{@options[:e_val]}" if @options[:e_val]
@command << "--rev"
execute