如何为一系列输入运行 grep 命令? [英] How do I run grep command for a range of inputs?

问题描述

我需要以下 grep 命令来查找日志中每小时收到的请求数:

I need the following grep command to find how many requests per hour are received in logs:

grep 'login log' filelog.txt | grep -c '2017-08-30 ":00 to :23"'

这里是 00 到 23 小时，我需要作为参数传递.例如，对于日期 30，我需要查看每小时的计数.

Here the hour 00 till 23, I need to pass as a parameter. For instance, for date 30 I need to see each hour what was the count.

是否可以使用单个命令?目前我必须每小时手动执行一个命令.例如，

Is it possible using a single command? Currently I have to execute one command for each hour manually. For example,

$grep 'login log' filelog.txt | grep -c '2017-08-30 :00'
123
$grep 'login log' filelog.txt | grep -c '2017-08-30 :01'
456

这里是文件中的日志行，我想根据时间(第二列)每小时计算一次:

Here are log lines inside the file which I wanted to count hourly based on time (second column):

2017-08-30 20:19:47 INFO  com.java.JavaFile:123 - login log  abcduser

推荐答案

grep "yourstring" filelog.txt |
   grep -Eo "^[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}" | sort | uniq -c

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