No need for recursion, a loop is just fine: 
#!/usr/bin/perl
use warnings;
use strict;
use feature qw{ say };

use Path::Tiny;

my $path = 'Path::Tiny'->cwd;
$path = path("$path/..")->realpath
    until -e "$path/.marker" || '/' eq $path;
say -e "$path/.marker" ? 'F' : 'Not f', 'ound';

[download]

($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,

[download]

In reply to Re: Recursively walk up a directory tree by choroba
in thread Recursively walk up a directory tree by 1nickt

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