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  1. or download this
    perl -we 'use Unicode::GCString;use Unicode::Normalize;$t="Hütte";prin
+t length("$t");$g=Unicode::GCString->new("$t");print $g->columns'
66
  2. or download this
    perl -we 'use utf8;use Unicode::GCString;use Unicode::Normalize;$t="Hü
+tte";print length("$t");$g=Unicode::GCString->new("$t");print $g->col
+umns'
55