<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[米小亚]]></title><description><![CDATA[陌上花开，可缓缓归矣！]]></description><link>https://blog.youkuaiyun.com/printf_1853</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; printf_1853]]></copyright><item><title><![CDATA[史上最全的 Linux Shell 文本处理工具集锦]]></title><link>https://blog.youkuaiyun.com/printf_1853/article/details/109487376</link><guid>https://blog.youkuaiyun.com/printf_1853/article/details/109487376</guid><author>printf_1853</author><pubDate>Wed, 04 Nov 2020 11:42:15 +0800</pubDate><description><![CDATA[史上最全的 Linux Shell 文本处理工具集锦

本文将介绍Linux下使用Shell处理文本时最常用的工具：



find、grep、xargs、sort、uniq、tr、cut、paste、wc、sed、awk；



提供的例子和参数都是最常用和最为实用的；



对shell脚本使用的原则是命令单行书写，尽量不要超过2行；



如果有更为复杂的任务需求，还是考虑python吧；



# find 文件查找



1 查找txt和pdf文件







find . ( ...]]></description><category></category></item><item><title><![CDATA[生产环境下JAVA进程高CPU占用故障排查]]></title><link>https://blog.youkuaiyun.com/printf_1853/article/details/108469963</link><guid>https://blog.youkuaiyun.com/printf_1853/article/details/108469963</guid><author>printf_1853</author><pubDate>Tue, 08 Sep 2020 16:44:42 +0800</pubDate><description><![CDATA[1、top 找出占用cpu过高的进程（按shift+p按照CPU排序）



2、top -H -p [进程id] 找到进程中消耗资源最高的线程的id



3、printf "%x\n" [线程id] 将线程id转换为16进制（字母要小写）



4、jstack pid |grep tid -A 30 打印堆栈信息 pid=进程ID tid = [线程id的16进制]

或者开启jvm远程jmxhttps://blog.youkuaiyun.com/printf_1853/article/details/103..]]></description><category></category></item><item><title><![CDATA[quartz/Cron/Crontab表达式整理]]></title><link>https://blog.youkuaiyun.com/printf_1853/article/details/105641393</link><guid>https://blog.youkuaiyun.com/printf_1853/article/details/105641393</guid><author>printf_1853</author><pubDate>Mon, 20 Apr 2020 18:45:50 +0800</pubDate><description><![CDATA[Crontab：

第1列分钟1～59
第2列小时1～23（0表示子夜）
第3列日1～31
第4列月1～12
第5列星期0～6（0表示星期天）
第6列要运行的命令

Quartz：

第1列秒1～59

第2列分钟1～59

第3列小时1～23（0表示子夜）

第4列日1～31

第5列月1～12

第6列星期0～6（0表示星期天）

常用表达式例子
（1）0/2 * * * * ?  表示每2...]]></description><category></category></item><item><title><![CDATA[CentOS 7  安装 rz/sz、安装zip/unzip]]></title><link>https://blog.youkuaiyun.com/printf_1853/article/details/105546081</link><guid>https://blog.youkuaiyun.com/printf_1853/article/details/105546081</guid><author>printf_1853</author><pubDate>Wed, 15 Apr 2020 22:26:24 +0800</pubDate><description><![CDATA[CentOS 7 无法找到 rz/sz 命令：root 用户

1、安装rz


yum install -y lrzsz

2、安装 zip/unzip


yum list zip unzip

yum -y install zip unzip


]]></description><category></category></item><item><title><![CDATA[CentOS 7 httpd服务安装]]></title><link>https://blog.youkuaiyun.com/printf_1853/article/details/105545802</link><guid>https://blog.youkuaiyun.com/printf_1853/article/details/105545802</guid><author>printf_1853</author><pubDate>Wed, 15 Apr 2020 22:05:34 +0800</pubDate><description><![CDATA[1.安装httpd服务

yum install httpd -y

2.重启httpd服务

systemctl start httpd.service

3.关闭防火墙

systemctl stop iptables.service

4.测试放置html文件到 var/www/html 目录
]]></description><category></category></item><item><title><![CDATA[CentOS7 防火墙设置]]></title><link>https://blog.youkuaiyun.com/printf_1853/article/details/105439437</link><guid>https://blog.youkuaiyun.com/printf_1853/article/details/105439437</guid><author>printf_1853</author><pubDate>Fri, 10 Apr 2020 18:26:34 +0800</pubDate><description><![CDATA[1、查看firewall服务状态


systemctl status firewalld



2、查看firewall的状态


firewall-cmd --state



3、开启、重启、关闭、firewalld.service服务


# 开启
service firewalld start
# 重启
service firewalld restart
# 关闭
service ...]]></description><category></category></item><item><title><![CDATA[SpringBoot-用户登录拦截，Cookies验证，全局用户变量设置]]></title><link>https://blog.youkuaiyun.com/printf_1853/article/details/105439131</link><guid>https://blog.youkuaiyun.com/printf_1853/article/details/105439131</guid><author>printf_1853</author><pubDate>Fri, 10 Apr 2020 18:14:17 +0800</pubDate><description><![CDATA[1、创建拦截器


@Component
public class SignInterceptor implements HandlerInterceptor {

    Logger logger = LoggerFactory.getLogger(SignInterceptor.class);
    @Autowired
    private TUserService userServi...]]></description><category></category></item><item><title><![CDATA[Linux 安装JDK]]></title><link>https://blog.youkuaiyun.com/printf_1853/article/details/105184514</link><guid>https://blog.youkuaiyun.com/printf_1853/article/details/105184514</guid><author>printf_1853</author><pubDate>Sun, 29 Mar 2020 19:41:31 +0800</pubDate><description><![CDATA[通过yum进行安装：

1、查看java列表信息：yum list java*



2、进行java安装：yum install -y java-1.8.0-openjdk.x86_64



3、查看java 版本信息：java -version






]]></description><category></category></item><item><title><![CDATA[Git 命令]]></title><link>https://blog.youkuaiyun.com/printf_1853/article/details/105168605</link><guid>https://blog.youkuaiyun.com/printf_1853/article/details/105168605</guid><author>printf_1853</author><pubDate>Sat, 28 Mar 2020 21:11:04 +0800</pubDate><description><![CDATA[标题
]]></description><category></category></item><item><title><![CDATA[IDEA快捷键收藏]]></title><link>https://blog.youkuaiyun.com/printf_1853/article/details/105168570</link><guid>https://blog.youkuaiyun.com/printf_1853/article/details/105168570</guid><author>printf_1853</author><pubDate>Sat, 28 Mar 2020 21:09:57 +0800</pubDate><description><![CDATA[编辑快捷键


			编辑快捷 键
			
			
			介绍
			
		
			Tab
			
			
			缩进 / 配合代码提示实现自动完成
			
		
			Shift + Tab
			
			
			取消缩进
			
		
			Ctrl + Z
			
			
			撤销
			
		
			Ctrl + Shift + Z
			
			
			取消撤销
			
		
			C...]]></description><category></category></item><item><title><![CDATA[【JAVA工作笔记之音频处理】PCM转WAV]]></title><link>https://blog.youkuaiyun.com/printf_1853/article/details/103909440</link><guid>https://blog.youkuaiyun.com/printf_1853/article/details/103909440</guid><author>printf_1853</author><pubDate>Sat, 28 Mar 2020 21:07:01 +0800</pubDate><description><![CDATA[wav头长度44字节

增加wav头文件信息


package com.example.demo;

import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class Pcm...]]></description><category></category></item><item><title><![CDATA[开启jvm远程jmx]]></title><link>https://blog.youkuaiyun.com/printf_1853/article/details/103913493</link><guid>https://blog.youkuaiyun.com/printf_1853/article/details/103913493</guid><author>printf_1853</author><pubDate>Sat, 28 Mar 2020 21:06:21 +0800</pubDate><description><![CDATA[-Dcom.sun.management.jmxremote=true

-Dcom.sun.management.jmxremote.port=7091

-Dcom.sun.management.jmxremote.authenticate=false

-Dcom.sun.management.jmxremote.ssl=false



https://blog.youkuaiyun.com...]]></description><category></category></item></channel></rss>