in reply to Re^2: what is the purpose of Tie::File
in thread what is the purpose of Tie::File

Yes, or you can substitute something for what may be nothing, as in s/\n*\z/\n/.
--
A math joke: r = | |csc(θ)|+|sec(θ)|-||csc(θ)|-|sec(θ)|| |

In Section Seekers of Perl Wisdom