Since we're golfing, 

$s = $1; $s =~ y|\x20-\x7e|.|c;

[download]

can be replaced with 

( $s = $1 ) =~ y|\x20-\x7e|.|c;

[download]

It's one character shorter with spaces removed.

Or 

$s = $1 =~ y|\x20-\x7e|.|cr;

[download]

It's yet another character shorter with spaces removed.

In reply to Re^6: hexdump -C by ikegami
in thread hexdump -C by NERDVANA

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