sed -e '10,15p;4p;s/.*//' file | awk '!/^$/{print $0}' somefile


##</code><code>##

sed -e '10,15p;4p;d' | awk ...


##</code><code>##

sed -ne '10,15p;5p' | awk ...


##</code><code>##

sed -ne '/^$/d;10,15p;4p' file


##</code><code>##

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,