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my $now = time; $log_start=scalar localtime $now -1 * 86400; ... $log_start=~ s/^\w+\s+(\w+\s\d{1,2}\s\d{1,2}:\d{1,2}:\d{1,2})\s\d{4}$/ +$1/i; print "Modified Log start = $1\n";
$log_start=~ s/^\w+\s+(\w+\s+\d{1,2}\s\d{1,2}:\d{1,2}:\d{1,2})\s\d{4}$ +/$1/i;