"I get the error Undefined subroutine &main::UpdateFile ... What I'm I doing wrong?"

Exactly what the error message is telling you: you haven't defined UpdateFile().

Look at the Schedule::Cron SYNOPSIS: 

  sub dispatcher { 
    ...
  }
  ...
  my $cron = new Schedule::Cron(\&dispatcher);

[download]

-- Ken

In reply to Re: Schedule::Cron determine next run time by kcott
in thread Schedule::Cron determine next run time by ra93013

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