First of all, you're only using the /g flag, which will interpret your expressions literally and do interpolation. So you end up with this: 
s/quotemeta('[')/quotemeta('x')/g;

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Which presumably (if it were valid) would match the text "quotemeta'['", putting '[' into $1. Try doing this: 
s/\Q$array1{$count}\E/$array2{$count}/g;

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Or, if each array element simply has one character apiece (as you suggest), forego the loop entirely and use tr: 
$from = join('', @array1);  # or set up $from and $to
$to   = join('', @array2);  # to begin with

tr/$from/$to/;              # e.g. "abc" =~ tr/ab/xy/ ==> "xyc"

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In reply to Re: Substitution problem. by Fastolfe
in thread Substitution problem. by Leitchn

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