in reply to Re^2: Golf: Replacing part of a string with "*"
in thread Golf: Replacing part of a string with "*"

Ah! Then

printf "************%s\n", substr('5424123412345678', -4);; ************5678

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.