Why does $out need the curly brackets?
It does not. $OUT{wpa} would need them, though, if the file handles were stored in a hash. I use it just to make it visually more distinct from print $OUT, $data.

See <<EOF on how to make a here document interpolate variables (basically, just use double quotes when introducing the terminating string).

لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re^3: Perl and cat > wpa_supplicant/.config << "EOF" by choroba
in thread Perl and cat > wpa_supplicant/.config << "EOF" by Steve_BZ

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