Check for file and process it, existence of file launch script - perl -


how can write perl program wait input file created , process contents of file? ideally should cross-platform solution rather relying on features of given operating system.

note file might exist script started, or might created @ later date. once input file has been processed perl program can exit.

[note substantially edited version of original question. original poster should feel free make additional edits if didn't understand question.]

take @ file::monitor. inform of sorts of file system events. program shows how monitor file creation in specific directory , process new xml files.

use strict; use warnings; use 5.010;  use file::monitor;  $monitor = file::monitor->new;  $monitor->watch( {   name        => 'e:\perl\source',   files       => 1,   callback    => { files_created => \&files_created } } );  while () {   @new = $monitor->scan;   sleep 1; }  sub files_created {   ($name, $event, $change) = @_;   $file ( $change->files_created ) {     process_xml($file) if $file =~ /\.xml$/i;   } }  sub process_xml {   ($file) = @_;   $file; }

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