$. Or at least implicit $
Just seen on ruby-talk:
Do we have such things for getc(), too?
If we call gets(), the returned string is copied to a special variable $_
No, implicit global variables are evil. I'd rather remove $_ in the future.
matz.
Maybe the reason that Matz picked $ as the sigil for global variables wasn’t to follow perl!
And this just after we learn that “Fahrenheit-451” was about the dangers not of government censorship but of TV."