Linux日志系统-02：logrotate简介

╰半橙微兮° 2023-01-19 08:28 38阅读 0赞

### 目录 ###

### 1、logrotate作用 ###

### 2、logrotate具体功能 ###

### 3、logrotate的配置文件 ###

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### 1、logrotate作用 ###

（1）logrotate可以实现日志转储，目的是防止日志文件太大。

（2）系统的使用方式，每天执行一次logrotate，这是基于计划任务文件实现，计划任务脚本/etc/cron.daily/logrotate如下：

#!/bin/sh
    
    /usr/sbin/logrotate -s /var/lib/logrotate/logrotate.status /etc/logrotate.conf
    
    EXITVALUE=$?
    
    if [ $EXITVALUE != 0 ]; then
    
        /usr/bin/logger -t logrotate "ALERT exited abnormally with [$EXITVALUE]"
    
    fi
    
    exit 0

### 2、logrotate具体功能 ###

（1）自动对日志文件进行滚动

（2）压缩日志文件

（3）删除旧日志

（4）发送邮件通知

### 3、logrotate的配置文件 ###

**（1）主配置文件：/etc/logrotate.conf**

# see "man logrotate" for details
    
    # rotate log files weekly
    
    weekly
    
    
    # keep 4 weeks worth of backlogs
    
    rotate 4
    
    
    # create new (empty) log files after rotating old ones
    
    create
    
    
    # use date as a suffix of the rotated file
    
    dateext
    
    
    # uncomment this if you want your log files compressed
    
    #compress
    
    
    # RPM packages drop log rotation information into this directory
    
    include /etc/logrotate.d
    
    
    # no packages own wtmp and btmp -- we'll rotate them here
    
    /var/log/wtmp {
    
        monthly
    
        create 0664 root utmp
    
            minsize 1M
    
        rotate 1
    
    }
    
    og/btmp {
    
        missingok
    
        monthly
    
        create 0600 root utmp
    
        rotate 1
    
    }
    
    
    # system-specific logs may be also be configured here.

**（2）子配置文件：/etc/logrotate.d目录中**

![2021050913341771.png][]

**（3）自己的配置文件：/var/lib/logrotate.status(记录了logrotate的滚动日志的记录)**

![20210509133437643.png][]

[2021050913341771.png]: /images/20221021/c332af089f0e4684aef663f5492adfc3.png
[20210509133437643.png]: /images/20221021/3cba21b2a9664407893d2e5d304463e7.png