在 /var/log/secure 中搜索失败的尝试

在 /var/log/secure 中搜索失败的尝试

我目前正在编写一个脚本来检查 /var/log/secure 文件并报告当天有多少次失败的尝试。我需要以以下格式输出它:

Date: 03/15/10 Time: 10:30 Number of failed attempts: 8

到目前为止,这是我的代码(没有做太多事情)...我走在正确的轨道上吗?

#!/bin/bash

classGID=5000
passfile=/var/log/secure


for i in $(grep ${classGID} ${passfile} | cut -d: -f1)
do

date=$(grep $i{passfile} | cut -d: -f2)

echo "Date: ${date}"

done

答案1

#!/usr/bin/env bash

c=1
while read line
do
        a=( $line )
        d="${a[@]::3}"
        logdate=$( date '+%F' -d"$d" )
        if [[ $logdate == $old_logdate ]]; then
                (( c++ ))
        elif [[ $old_logdate != $logdate ]]; then
                printf "%s\t%s\t%s%s\n" "Date: $old_logdate Number of failed attempts: $c"
                old_logdate=$logdate
                c=1
                continue
        else
                printf "%s\t%s\t%s%s\n" "Date: $logdate Number of failed attempts: $c"

        fi

done < <(grep 'authentication failure' /var/log/secure)

它跳过最后一条记录,我不知道为什么

相关内容