015 is "octal", and \ is escape so , octal escape, so octal escape -> Re: syntax of Data::Dump (perlquote oct octal escape perlrebackslash) -> oct 

$dec_perms = (stat("filename"))[2] & 07777;
$oct_perm_str = sprintf "%o", $perms;

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So there it is 
$ perl -le" print sprintf q{\\%03o}, ord $_ for qq{\r}, qq{\n} "
\015
\012

$ perl -le " $_ = qq{\r\n\r\n}; s{(.)}{sprintf q{\\%03o}, ord $1}gse; 
+print; "
\015\012\015\012

[download]

In reply to Re: Transforming "\r\n" to '\012\015' ( octal escape encode pack implode ) by Anonymous Monk
in thread Transforming "\r\n" to '\012\015' by stevieb

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