$ w3m -dump "http://labunix.hateblo.jp/sitemap.xml" | \ sed s/">\|<"/"\n"/g | awk '/^http/{print "w3m -dump "$1}' | sh | \ sed s/">\|<"/"\n"/g | awk '/^http/ && /entry/ {print $1}' | \ grep "20150[4567]" | grep -v "20150420\|201504[01]" | …