+ ( egrep example.indexdata.com url.demos | perl -ne 'chomp; print qq{<h2>$$_</h2><iframe width="900px" height="600px" src="$$_"></iframe>\n}' ) > iframe-demos-example.html
+ ( egrep -v example.indexdata.com url.demos | perl -ne 'chomp; print qq{<h2>$$_</h2><iframe width="900px" height="600px" src="$$_"></iframe>\n}' ) > iframe-demos-other.html