我需要完成过滤日志文件中机器人活动的任务。
解决方案应仅显示满足以下条件的记录
- 用户登录,用户更改密码,用户在同一秒内注销。
- 这些操作(登录、更改密码、注销)一个接一个地发生,中间没有其他条目。
输入数据示例
[a lot of data]
Mon, 22 Aug 2016 13:15:39 +0200|178.57.66.225|fxsciaqulmlk| - |user logged in| -
Mon, 22 Aug 2016 13:15:39 +0200|178.57.66.225|fxsciaqulmlk| - |user changed password| -
Mon, 22 Aug 2016 13:15:39 +0200|178.57.66.225|fxsciaqulmlk| - |user logged off| -
Mon, 22 Aug 2016 13:15:42 +0200|178.57.66.225|faaaaaa11111| - |user logged in| -
Mon, 22 Aug 2016 13:15:40 +0200|178.57.66.215|terdsfsdfsdf| - |user logged in| -
Mon, 22 Aug 2016 13:15:49 +0200|178.57.66.215|terdsfsdfsdf| - |user changed password| -
Mon, 22 Aug 2016 13:15:49 +0200|178.57.66.215|terdsfsdfsdf| - |user logged off| -
Mon, 22 Aug 2016 13:15:59 +0200|178.57.66.205|erdsfsdfsdf| - |user logged in| -
Mon, 22 Aug 2016 13:15:59 +0200|178.57.66.205|erdsfsdfsdf| - |user changed password| -
Mon, 22 Aug 2016 13:15:59 +0200|178.57.66.205|erdsfsdfsdf| - |user logged off| -
Mon, 22 Aug 2016 13:17:50 +0200|178.57.66.205|abcbbabab| - |user logged in| -
Mon, 22 Aug 2016 13:17:50 +0200|178.57.66.205|abcbbabab| - |user changed password| -
Mon, 22 Aug 2016 13:17:50 +0200|178.57.66.205|abcbbabab| - |user changed profile| -
Mon, 22 Aug 2016 13:17:50 +0200|178.57.66.205|abcbbabab| - |user logged off| -
Mon, 22 Aug 2016 13:19:19 +0200|178.56.66.225|fxsciaqulmla| - |user logged in| -
Mon, 22 Aug 2016 13:19:19 +0200|178.56.66.225|fxsciaqulmla| - |user changed password| -
Mon, 22 Aug 2016 13:19:19 +0200|178.56.66.225|fxsciaqulmla| - |user logged off| -
Mon, 22 Aug 2016 13:20:42 +0200|178.57.67.225|faaaa0a11111| - |user logged in| -
[a lot of data]
为了完成任务,我编写了下面的代码
awk 'BEGIN { FS=" " } { c[$5]++; l[$5,c[$5]]=$0 } END { for (i in c) { if (c[i] == 3) for (j = 1 ; j <= c[i]; j++) print l[i,j] } }' $1
用法:
./parse_log.sh 日志文件.log
输出:
Mon, 22 Aug 2016 13:15:39 +0200|178.57.66.225|fxsciaqulmlk| - |user logged in| -
Mon, 22 Aug 2016 13:15:39 +0200|178.57.66.225|fxsciaqulmlk| - |user changed password| -
Mon, 22 Aug 2016 13:15:39 +0200|178.57.66.225|fxsciaqulmlk| - |user logged off| -
Mon, 22 Aug 2016 13:15:59 +0200|178.57.66.205|erdsfsdfsdf| - |user logged in| -
Mon, 22 Aug 2016 13:15:59 +0200|178.57.66.205|erdsfsdfsdf| - |user changed password| -
Mon, 22 Aug 2016 13:15:59 +0200|178.57.66.205|erdsfsdfsdf| - |user logged off| -
Mon, 22 Aug 2016 13:19:19 +0200|178.56.66.225|fxsciaqulmla| - |user logged in| -
Mon, 22 Aug 2016 13:19:19 +0200|178.56.66.225|fxsciaqulmla| - |user changed password| -
Mon, 22 Aug 2016 13:19:19 +0200|178.56.66.225|fxsciaqulmla| - |user logged off| -
但我想知道用 Perl 或 Python 编写的替代方案(使用最少的外部库)会是什么样子?