CentOS7系统相关记录

买了一台阿里云的服务器，做下捣腾笔记。

系统

查看版本

➜  ~ lsb_release -a
LSB Version:	:core-4.1-amd64:core-4.1-noarch
Distributor ID:	CentOS
Description:	CentOS Linux release 7.4.1708 (Core)
Release:	7.4.1708
Codename:	Core

创建用户

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adduser admin 
passwd admin 
    输入密码

创建授权

查看授权文件
ls -l /etc/sudoers
增加写权限
chmod -v u+w /etc/sudoers

编辑
vim /etc/sudoers

新增新用户授权

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## Allow root to run any commands anywher  
root    ALL=(ALL)       ALL  
admin  ALL=(ALL)       ALL  #这个是新增的用户

切换用户shell(把.oh-my-zsh拷贝到用户目录下)

1	chsh -s /bin/zsh

查看shell

echo $0

yum软件安装

安装git

先查看git是否存在

1	git --version

安装命令

1	yum install -y git

安装zsh

1	yum install -y zsh

配置oh-my-zsh

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git clone git://github.com/robbyrussell/oh-my-zsh.git ~/.oh-my-zsh
cp ~/.zshrc ~/.zshrc.orig
cp ~/.oh-my-zsh/templates/zshrc.zsh-template ~/.zshrc

安装nginx

查看信息

1	yum info nginx

执行安装

1	yum install nginx

安装Python3

首先安装依赖

1	um install -y openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel gcc cc