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    my $log = `tail -$lines /var/log/syslog|egrep -i '$day'|egrep -i 'defe
    +rred'`;
    
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    my $log = `tail -$lines /var/log/syslog|egrep -i '$day'|egrep -i 'defe
    +rred'` or die ("No Deferred messages\n");
    
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    Use of uninitialized value in pattern match (m//) at dm line 45.
    Use of uninitialized value in pattern match (m//) at dm line 51.
    Use of uninitialized value in subtraction (-) at dm line 58.
    Use of uninitialized value in subtraction (-) at dm line 58.
    deferred messages ocurred withing 1 minute of each other