On Tue, Feb 12, 2002 at 03:01:05PM +0100, Tomás García Ferrari wrote:
>
> Which should be the best approach to have an FTP server that checkes when
> some user upload a file an runs a process after that? Log checking? Adding
> this process to a cron job? Which way should I start searching...?
We use cron jobs here since it varies from user to user as to how often a
file may be updated - some we check every 5 minutes and others only once or
twice per day.
When you check for new files being dropped into a directory, you should
do a double-check with lsof to see if the file is still open or you could be
trying to process a file that is still in transit.
My approach is based on the following rough perl code (these are just snippets
so you'll need to incorporate them into your own procedure):
my $local="[the download directory]";
my @files;
sub getfiles() {
open(FILES,"find $local -type f |");
while (my $t = <FILES>) {
$files[@files] = $t;
}
close(FILES);
}
getfiles();
foreach my $t (@files) {
chomp ($t) ;
if (system("lsof -Fn -- $local/* | grep -q \"n$t\"")) {
[do stuff with $t];
}
}
Cheers,
.../Ed
--
Ed Wilts, Mounds View, MN, USA
mailto:[EMAIL PROTECTED]
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