thanks all . But from the view of SA,I have not understand how to get the hidden processes in os linux . and how to get the env of every process . thanks
-----邮件原件----- 发件人: John W. Krahn [mailto:jwkr...@shaw.ca] 发送时间: 2009年11月19日 23:53 收件人: Perl Beginners 主题: Re: the question of one program Shlomi Fish wrote: > On Thursday 19 Nov 2009 16:54:00 gaochong wrote: >> Now I have see the following page ,but I have some question and need help . >> >> http://www.cpan.org/authors/id/S/SU/SUJAI/Process-Detail-0.1.pl >> >> >> the second , @array=split(/([A-Z]+(_|[A-Z])+\=.[^A-Z]+)/,$_); >> also the re \=.[^A-Z]+ what’s it ? > > \= is an actual "=". A "=" would be fine here, too. "." is any character > except a newline. "[^A-Z]" is any character except the uppercase Latin ASCII > letters ("A", "B", "C"..."Z"). "+" is "one or more" when applied to the > suffix. You can see signs of "ancient perl" in this expression, because it > uses several capturing parentheses ("(...)") instead of clustering ones > ("(?:...)"). Capturing parentheses in a split() regular expression returns the contents of the capturing parentheses as well as the strings that didn't match the regular expression so using non-capturing parentheses would do something completely different. That being said, I agree wholeheartedly that this is one crappy Perl program and should be avoided. John -- The programmer is fighting against the two most destructive forces in the universe: entropy and human stupidity. -- Damian Conway -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/ -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
