Hi Feng, > What's the meaning of Perl's "-M" operator?
`-M` is a command switch. It is used to load a module and is equivalent to `use`-ing a module within the script. `-M` is different from `-m` in that the former executes `import` function of the module whereas the latter does not import any function except for the ones that have been explicitly listed with the command switch. > which perldoc document is it get descripted in? Command switches are documented in `perlrun`. Regards, Alan Haggai Alavi. -- The difference makes the difference. -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
