<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[gushaolin的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/gushaolin</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; gushaolin]]></copyright><item><title><![CDATA[linux dirname和basename命令]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/127663757</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/127663757</guid><author>gushaolin</author><pubDate>Thu, 03 Nov 2022 09:30:47 +0800</pubDate><description><![CDATA[linux]]></description><category></category></item><item><title><![CDATA[oracle版本说明]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/127644876</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/127644876</guid><author>gushaolin</author><pubDate>Wed, 02 Nov 2022 08:21:49 +0800</pubDate><description><![CDATA[oracle版本说明]]></description><category></category></item><item><title><![CDATA[linux cut命令]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/126652591</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/126652591</guid><author>gushaolin</author><pubDate>Thu, 01 Sep 2022 22:37:51 +0800</pubDate><description><![CDATA[linux cut]]></description><category></category></item><item><title><![CDATA[linux shell date时间函数、串行执行、位置变量、shift]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/124543191</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/124543191</guid><author>gushaolin</author><pubDate>Mon, 02 May 2022 17:02:36 +0800</pubDate><description><![CDATA[参考连接：

https://blog.youkuaiyun.com/wujizhishui/article/details/119955956

一，date获取时间精确到毫秒
举例：
[gudong@k8s-node01 ~]$ date +'%Y-%m-%d/%H:%M:%S.%N' 
2022-05-02/16:53:51.717582175
[gudong@k8s-node01 ~]$ date +'%Y-%m-%d/%H:%M:%S.%N' | cut -b 1-23
2022-05-02/16:53:54]]></description><category></category></item><item><title><![CDATA[nginx之root alias proxy_pass测试]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/121846575</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/121846575</guid><author>gushaolin</author><pubDate>Fri, 10 Dec 2021 22:18:44 +0800</pubDate><description><![CDATA[[root@k8s-node02 conf.d]# cat test.conf 
server {
        listen       80;
        listen       [::]:80;
        server_name www.gudong.com
        root   /usr/share/nginx/html;        
location / {
           index index.html;
        }

location /test1 {]]></description><category></category></item><item><title><![CDATA[oracle RAC asm管理]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/119810671</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/119810671</guid><author>gushaolin</author><pubDate>Thu, 19 Aug 2021 21:08:23 +0800</pubDate><description><![CDATA[文章目录一，ASM查看磁盘组状态二，ASMCMD工具三，操作实例1， 创建ASM磁盘组2， 添加磁盘3， 挂载与卸载磁盘组
参考链接：

https://blog.youkuaiyun.com/qq_34556414/article/details/79716566
https://www.cnblogs.com/zhangshengdong/p/11935035.html
https://blog.youkuaiyun.com/weixin_33699914/article/details/91963556 （主）
https:]]></description><category></category></item><item><title><![CDATA[linux生成随机数]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/119206684</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/119206684</guid><author>gushaolin</author><pubDate>Thu, 29 Jul 2021 11:06:41 +0800</pubDate><description><![CDATA[[gudong@CentOS7.4-1 ~]$cat /dev/urandom |tr -dc 'a-zA-Z0-9_' | head -c12
3guSH3yIJbdQ[gudong@CentOS7.4-1 ~]$
[gudong@CentOS7.4-1 ~]$cat /dev/urandom |tr -dc 'a-zA-Z0-9_' | head -c12
S_AK30N5WkbE[gudong@CentOS7.4-1 ~]$


]]></description><category></category></item><item><title><![CDATA[redis缓存清理]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/119116039</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/119116039</guid><author>gushaolin</author><pubDate>Mon, 26 Jul 2021 18:48:36 +0800</pubDate><description><![CDATA[1.访问redis根目录    cd  /usr/local/redis
2.登录redis：redis-cli -h localhost -p 6379
3.查看所有key值：keys *
4.删除指定索引的值：del key
5.清空整个 Redis 服务器的数据：flushall
6.清空当前库中的所有 key：flushdb

...]]></description><category></category></item><item><title><![CDATA[Linux系统常见设备对应的文件名]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/117625796</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/117625796</guid><author>gushaolin</author><pubDate>Sun, 06 Jun 2021 13:55:49 +0800</pubDate><description><![CDATA[文章目录1、命名规则2、常见设备与文件名
参考链接：

https://blog.youkuaiyun.com/fdzpapillon/article/details/103047052
https://blog.youkuaiyun.com/bbc955625132551/article/details/72784599

1、命名规则
每个设备在Linux都会被当成一个文件来看待，有点类似于它们的角色，于是就会有特定的文件名。

几乎所有的硬件都的文件名都是/dev开头的。
以/dev/sd[a-d]为例，[]内的字母为a-d]]></description><category></category></item><item><title><![CDATA[stdin方式修改linux用户密码]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/116117004</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/116117004</guid><author>gushaolin</author><pubDate>Sun, 25 Apr 2021 09:40:35 +0800</pubDate><description><![CDATA[echo “servyou2099” | passwd weblogic --stdin

]]></description><category></category></item><item><title><![CDATA[k8s  node节点加入主节点报错]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/114106438</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/114106438</guid><author>gushaolin</author><pubDate>Thu, 25 Feb 2021 21:22:28 +0800</pubDate><description><![CDATA[一，报错1
参考文档：
https://blog.youkuaiyun.com/qianghaohao/article/details/82624920
https://www.cnblogs.com/wangzy-tongq/p/13130877.html
[root@k8s-node01 gudong]# kubeadm join 192.168.31.232:6443 --token abcdef.0123456789abcdef     --discovery-token-ca-cert-hash sha256]]></description><category></category></item><item><title><![CDATA[linux 开启操作日志记录]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/106470412</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/106470412</guid><author>gushaolin</author><pubDate>Mon, 01 Jun 2020 13:12:04 +0800</pubDate><description><![CDATA[1，修改/etc/profile文件
[root@CentOS7-2 ~]# vim + /etc/profile  //追加如下内容
history
 USER=`whoami`
 USER_IP=`who -u am i 2&gt;/dev/null| awk '{print $NF}'|sed -e 's/[()]//g'`
 if [ "$USER_IP" = "" ]; then
 USER_IP=`hostname`
 fi
 if [ ! -d /var/log/history ]; then]]></description><category></category></item><item><title><![CDATA[docker镜像常见命令]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/106414103</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/106414103</guid><author>gushaolin</author><pubDate>Thu, 28 May 2020 22:21:11 +0800</pubDate><description><![CDATA[docker镜像常见命令
1，docker images  //查看镜像
[root@CentOS7.4-1 ~]#docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
hello-world         latest              bf756fb1ae65        4 months ago        13.3kB
[root@CentOS]]></description><category></category></item><item><title><![CDATA[linux vsftpd服务的搭建]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/106268391</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/106268391</guid><author>gushaolin</author><pubDate>Thu, 21 May 2020 21:48:34 +0800</pubDate><description><![CDATA[实验环境：CentOS 7.4-1  192.168.128.138
1，提前关闭selinux 和firewalld防火墙
[root@CentOS7.4-1 pub]#getenforce 
Disabled
[root@CentOS7.4-1 pub]#systemctl status firewalld.service 
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/syst]]></description><category></category></item><item><title><![CDATA[linux uptime命令常见用法]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/105900646</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/105900646</guid><author>gushaolin</author><pubDate>Sun, 03 May 2020 11:10:22 +0800</pubDate><description><![CDATA[uptime用来系统当前时间、运行时长、当前用户数、当前的负载；
何为系统负载呢？
系统平均负载被定义为在特定时间间隔内运行队列中的平均进程数。如果一个进程满足以下条件则其就会位于运行队列中：
  它没有在等待I/O操作的结果
  它没有主动进入等待状态(也就是没有调用'wait')
  没有被停止(例如：等待终止)

一般来说，每个CPU内核当前活动进程数不大于3，则系统运行表现良好，如果每个C...]]></description><category></category></item><item><title><![CDATA[linux cat命令常见用法]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/105776768</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/105776768</guid><author>gushaolin</author><pubDate>Wed, 29 Apr 2020 15:45:42 +0800</pubDate><description><![CDATA[cat命令主要用来查看文件内容，创建文件，文件合并，追加文件内容等功能。
cat命令的全称：concatenate files and print on the standard output
1，查看文件内容主要用法：
1、cat f1.txt，查看f1.txt文件的内容。
2、cat -n f1.txt，查看f1.txt文件的内容，并且由1开始对所有输出行进行编号。
3、cat -b f1.t...]]></description><category></category></item><item><title><![CDATA[Linux seq命令常见用法]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/105824415</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/105824415</guid><author>gushaolin</author><pubDate>Tue, 28 Apr 2020 21:35:12 +0800</pubDate><description><![CDATA[seq：squeue是一个序列的缩写，主要用来输出序列化的东西。
功能：
　　1、输出两个数字之间连续的数字。
　　2、输出两个数字之间固定间隔的数字。
　　3、输出指定格式的数字。
1，seq常见命令参数
用法：seq [选项]... 尾数
　或：seq [选项]... 首数 尾数
　或：seq [选项]... 首数 增量 尾数
以指定增量从首数开始打印数字到尾数。
  -f, --format...]]></description><category></category></item><item><title><![CDATA[指定用户才可以su-和禁止root远程直接登录]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/105497475</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/105497475</guid><author>gushaolin</author><pubDate>Mon, 13 Apr 2020 21:09:25 +0800</pubDate><description><![CDATA[一，加入wheel组：
1，查看信息
[gudong@CentOS7.4-1 ~]$getent passwd gudong
gudong:x:1000:1000:gudong:/home/gudong:/bin/bash
[gudong@CentOS7.4-1 ~]$
[gudong@CentOS7.4-1 ~]$getent group gudong
gudong:x:1000:gudong
...]]></description><category></category></item><item><title><![CDATA[linux rpm命令简介]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/105483702</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/105483702</guid><author>gushaolin</author><pubDate>Mon, 13 Apr 2020 11:28:32 +0800</pubDate><description><![CDATA[RPM是RedHat Package Manager（RedHat软件包管理工具）类似Windows里面的“添加/删除程序”
rpm 执行安装包
二进制包（Binary）以及源代码包（Source）两种。二进制包可以直接安装在计算机中，而源代码包将会由RPM自动编译、安装。源代码包经常以src.rpm作为后缀名。
常用命令组合：
－ivh：安装显示安装进度--install--verbose--h...]]></description><category></category></item><item><title><![CDATA[useradd和userdel的使用实践]]></title><link>https://blog.youkuaiyun.com/gushaolin/article/details/104851562</link><guid>https://blog.youkuaiyun.com/gushaolin/article/details/104851562</guid><author>gushaolin</author><pubDate>Fri, 13 Mar 2020 23:41:46 +0800</pubDate><description><![CDATA[1，添加用户命令：useradd或adduser
1.1 作用
useradd或adduser命令用来建立用户帐号和创建用户的起始目录，使用权限是超级用户。
1.2 格式
useradd [-d home] [-s shell] [-c comment] [-m [-k template]] [-f inactive] [-e expire ] [-p passwd] [-r] name
1.3 ...]]></description><category></category></item></channel></rss>