Question

请帮我查找文件中没有出现的内容。还可以找到最大值和最小值。我能找到不存在的事件。

文件

SQL :: select * from person ...etc , Time Taken :: 30 
SQL :: select * from emp ...etc , Time Taken :: 5 
SQL :: select * from home ...etc , Time Taken :: 20 
SQL :: select * from emp ...etc , Time Taken :: 30 
SQL :: select * from person ...etc , Time Taken :: 10 
SQL :: select * from home ...etc , Time Taken :: 20 
SQL :: select * from person ...etc , Time Taken :: 50

输出应为enter code here

SQL                    No of occu        total Min  Max 
select * from person    3                  90   10   50 
select * from emp       2                  35    5   30

Answer 1

#!/usr/bin/perl


# sql -> {times, min, max}
my $data = {};
while (<>) {
    if (m{SQL.*?(select.*?\.\.\.).*?Taken\s\:\:\s(\d+)}xmsi) {
        my ($sql, $time) = ($1, $2);
        my $times = $data->{$sql}->{times} || 0;
        my $min = $data->{$sql}->{min} || $time;
        my $max = $data->{$sql}->{max} || $time;
        $max = $time if $time > $max;
        $min = $time if $time < $min;
        $times++;

        $data->{$sql}->{min} = $min;
        $data->{$sql}->{max} = $max;
        $data->{$sql}->{times} = $times;
    }
}

print "SQL No of occu total Min Max\n";
foreach my $sql(sort keys %{$data}) {
    print "$sql $data->{$sql}->{times} total $data->{$sql}->{min} $data->{$sql}->{max}\n";
}

运行：

stat.pl <your data file>

自己添加。

Perl ::查找出现的最大值和最大值

1 个答案: