Using a backslash "escapes" the following character. Given: 

$n = "\1n\1r";

foreach (split //, $n) {
    print ++$x." ".ord($_)."\n";
}

[download]

...produces:

11
2110
31
4114

Check out Quote and Quote-like Operators in perlop.

Cē

In reply to Re: What does \1 do? by cciulla
in thread What does \1 do? by Anonymous Monk

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