get quote enclosed field in a line

[xahlee at gmail.com]

is there a simple way in perl, python, or awk/shell/pipe, that gets
the user agent field in a apache log?

e.g. the typical line is like this:

189.139.109.235 - - [07/Apr/2008:00:00:16 -0400] "GET /
Periodic_dosage_dir/lacru/manara.html HTTP/1.1" 200 1933 xahlee.org
"http://xahlee.org/Periodic_dosage_dir/lacru/manara2.html" "Mozilla/
5.0 (Windows; U; Windows NT 5.1; es-ES; rv:1.8.1.13) Gecko/20080311
Firefox/2.0.0.13" "-"

I want the part: "Mozilla/5.0 (Windows; U; Windows NT 5.1; es-ES; rv:
1.8.1.13) Gecko/20080311 Firefox/2.0.0.13".

Thanks.

  Xah
  xah at xahlee.org
∑ http://xahlee.org/

☄