# Matching start/end of line

    my $str = q{foo
    bar
    cake};

    # ^^ and $$ match the line beginning/ending
    say "Matched beginning of line '$/'" if $str ~~ m/^^bar/;
    say "Matched end of the line '$/'"   if $str ~~ m/bar$$/;
    say "Matched end of the line '$/'"   if $str ~~ m/cake$$/;

TODO: I need better examples of beginning/end lines.