$string =~ s/\$/\\\$/g;

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The replacement behaves like qq: \\ becomes \, and the dollar sing needs to be backslashed, too, to prevent the interpretation of $/. 

($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 reply to Re: How to replace '$' in strings by choroba
in thread How to replace '$' in strings by ravi45722

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