如何使用uniq或awk获取shell脚本中唯一IP地址和错误的数量?

时间:2013-04-12 07:12:39

标签: awk uniq nslookup

我正在使用shell脚本对URL进行多次迭代的nslookup。我需要检查每个URL返回IP的次数。

在输出文件中,输出存储为

URL 
IP address

使用uniq -c命令当相同的IP地址相邻时我得到计数​​,但是当相同的IP地址在非相邻的行上时,我得到计数​​

Command is 
cat file.log | awk '{print $1}' | uniq -c

这是示例输出

1 url
3 72.51.46.230

现在,如果为特定URL返回多个IP地址,并且它们位于非相邻行,因为我没有运行。迭代。在这种情况下,uniq-c命令将不起作用。如果我使用排序选项它排序但我需要显示每个URL的输出,即。带有计数及其IP地址的URL和下一行。

例如。如果我在google.com上做nslookup它将返回多个地址,我会执行uniq -c我得到以下输出。如您所见,IP地址相同但计数仅为1,因为uniq -c不适用于非相邻线路。

  1 74.125.236.64
  1 74.125.236.78
  1 74.125.236.67
  1 74.125.236.72
  1 74.125.236.65
  1 74.125.236.73
  1 74.125.236.70
  1 74.125.236.66
  1 74.125.236.68
  1 74.125.236.71
  1 74.125.236.69
  1 nslookup: can't resolv 'google.com'
  1 nslookup: can't resolv 'google.com'
  1 nslookup: can't resolv 'google.com'
  1 nslookup: can't resolv 'google.com'
  1 nslookup: can't resolv 'google.com'
  1 nslookup: can't resolv 'google.com'
  1 nslookup: can't resolv 'google.com'
  1 74.125.236.70
  1 74.125.236.66
  1 74.125.236.68
  1 74.125.236.71
  1 74.125.236.69

我也尝试过使用AWK,但在这种情况下输出没有按照我的要求进行格式化。

Awk命令

awk '{a[$0]++}END{for (i in a) printf "%-2d -> %s \n", a[i], i}' file.log

您能否提出更好的解决方案来实现这一目标 -  以上述格式获取计数和显示?

所需的输出格式是

URL
Count IP address

示例输入文件。

URL1
72.51.46.230
72.51.46.230
google.com
74.125.236.64
74.125.236.78
(null)
nslookup: can't resolv 'google.com'
nslookup: can't resolv 'google.com'
nslookup: can't resolv 'google.com'
nslookup: can't resolv 'google.com'
nslookup: can't resolv 'google.com'

需要样本输出
URL1
2 72.51.46.230
google.com
1 74.125.236.64
1 74.125.236.78
1 null
5 nslookup: can't resolv 'google.com'

谢谢。

3 个答案:

答案 0 :(得分:1)

以下awk脚本完成工作:

$1~/[a-z]+[.].*/{         # If line have a letter in must be a URL 
    for(i in ip)          # Print all the counts and IPs (empty first time)
         print ip[i],i      
    delete ip             # Delete array for next set of IP's
    print                 # Print the URL 
    next                  # Skip to next line
}
{
    ip[$0]++              # If here line contains IP, increment the count per IP 
}
END{                      # Reached end of file need to print the last set of IPs
    for(i in ip)
        print ip[i],i
}

将其另存为script.awk并运行如下:

$ awk -f script.awk file
creativecommons.org
2 72.51.46.230
google.com
5 nslookup: can't resolv 'google.com'
1 (null)
1 74.125.236.64
1 74.125.236.78

答案 1 :(得分:0)

尝试使用第一个命令但添加sort

awk '{print $1}' file.log | sort | uniq -c

答案 2 :(得分:0)

你可以直接使用:

awk '{a[$1]++}END{for(i in a)print a[i],i}' file.log

而不是多个命令并管道每个命令的输出。

如果你想要它没有awk:

cut -f1 -d"\t" file.log|sort|uniq-c会做