Shawn H Corey <shawnhco...@gmail.com> writes: > You can use the 3-argument open for pipes: > > open my $ls_fh, '-|', 'ls' or die "could not open ls pipe: $!\n"; > >> >> But if so then all the problems discussed here come into play again. >> >> It seems like the redirect operator inclusion is what makes the open >> safer. >> >> So is this a 3 or 2 arg open: >> >> my $file = './file'; >> open(my $fh,"<$file")or die "Can't open $file: $!"; > > That's a 2-argument open; the 3-argument one looks like: > > open my $fh, '<', $file or die "could not open $file: $!\n"; > > See: > perldoc perlopentut http://perldoc.perl.org/perlopentut.html > perldoc -f open http://perldoc.perl.org/functions/open.html
I don't mean to pound this to death, but does that mean then that there are no good uses of 2 arg opens? Regarding perlopentut, I've been able to follow about a 1/10 of what I've read so far, but I must say that many (of at least the early) examples appear to be 2 arg opens. In fact a whole boat load of them do, but here people have seemed to be indicating that 2 arg opens are bad, no one has shown a good use of a two arg open in this thread. Yet, in perlopentut, they are all over the place. -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
