Nginx日志不处理的话，会一直追加，文件会变得很大

方法1：给日志文件名加上日期 推荐

log_format access-upstream '$time_iso8601|$request|$remote_addr|$upstream_response_time|$http_user_agent|$http_x_forwarded_for';
    map $time_iso8601 $logdate {
    '~^(?<ymd>\d{4}-\d{2}-\d{2})' $ymd;
    default                       'date-not-found';
}
access_log logs/access-$logdate.log ;

重新加载配置文件

# 验证文件配置是否正确
nginx -t
# 重新加载配置文件
nginx -s reload

# 观察，如果不生效，就把进程杀掉再打开

如下图所示

方法2：文件切割（网上好多用的这种方法--不推荐)

会 kill 进程，影响服务使用

Linux

nginx_log.sh

#!/bin/bash
date=$(date +%F -d -1day)
cd  /usr/local/nginx/logs
if [ ! -d bak ] ; then
        mkdir -p bak
fi
mv access.log bak/access_$date.log 
mv error.log bak/error_$date.log        
# /usr/bin/nginx -s reload       
kill -s SIGUSR1 $(cat /usr/local/nginx/logs/nginx.pid)
tar -jcvf bak/$date.tar.gz bak/access_$date.log bak/error_$date.log
find /usr/local/nginx/logs/bak -mtime +30 -name "*.gz" -exec rm -rf {} \;
find /usr/local/nginx/logs/bak -mtime +1 -name "*.log" -exec rm -rf {} \;

添加到定时任务

crontab -e #打开定时任务

i #进入编辑模式
0 1 * * * /bin/sh /opt/shell/nginx_log.sh #添加任务
:wq! #保存退出

如果报错：
tar (child): bzip2: Cannot exec: No such file or directory
tar (child): Error is not recoverable: exiting now

yum -y install bzip2

Windows

taskkill /F /IM nginx.exe > nul
rem date格式：Wed 11/02/2016
set today=%date:~0,4%-%date:~5,2%-%date:~8,2%
set dir=D:\nginx-1.20.1\logs\backup
md "%dir%"

rem access log 
move "D:\nginx-1.20.1\logs\access.log" "%dir%\access-%today%.log"

start "D:\nginx-1.20.1\nginx.exe"