in reply to 7zip a folder

"\n\n\"
     ^

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The last backslash quotes the following double quote, so it's included in the double quoted string, but the ending double quote is missing.

($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,

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In Section Seekers of Perl Wisdom