http://www.perlmonks.org?node_id=438902


in reply to Re^2: This is not a pipe
in thread This is not a pipe

It's too late now, but if perl had added a special syntax of m!! to indicate a negated match we could use m!\|!. As it is we have a modified form of one of sfink's suggestions: $_ !~ m/\|/.

Also, what about?

pipe(STDIN, STDOUT); #Optional: $|--, print STDOUT "This is not a pipe\n" ne <STDIN>;

--
I'm not belgian but I play one on TV. On dit que je parle comme un belge aussi.