OpenForum RSS: exec � Perl

exec � Perl (angra)

Mon, 31 Dec 2007 01:24:48 GMT

�� perldoc -f exec �� . �� , �� "and never returns" � �� . �� man perlop �� qx, �� . �� man perlfunc �� fork/exec � system �� .

Sun, 30 Dec 2007 21:07:06 GMT

>�� exec � perl.
>��
>
>#!/usr/bin/perl
>$a=exec("date");
>
>��-��
>date, ��-�� $a �� .

#!/usr/bin/perl
$a = `date`;

Sun, 30 Dec 2007 15:02:19 GMT

>�� exec � perl.
>��
>
>#!/usr/bin/perl
>$a=exec("date");
>
>��-��
>date, ��-�� $a �� .

open($fh, "date |");
while (<$fh> ) {
...
}
close $fh;