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lwp-request -o links <a href="http://flickr.com/" >http://flickr.com/</a> | grep jpg | perl -pe "chomp; s/.*?(S+jpg)/$1 /;" | xargs wget

#or

lwp-request -o links <a href="http://flickr.com" >http://flickr.com</a> | grep jpg | perl -pe "chomp; s/IMGs*(.*jpg)/$1 /;" | xargs wget

#The following will download the numbered images site.com/gallery/01.jpg through site.com/gallery/16.jpg

perl -e "$i=0;while($i<16){open(WGET,qq/|xargs wget/);printf WGET qq{http://site.com/gallery/%02d.jpg},++$i}"

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