安装zsh

yum -y install zsh
cat /etc/shells
# 设置默认shell
chsh -s /bin/zsh
#  重启电脑
reboot
# 查看当前默认shell 
echo $SHELL

安装oh-my-zsh

# 安装oh-my-zsh
git clone git://github.com/robbyrussell/oh-my-zsh.git ~/.oh-my-zsh

由于不可描述的原因，请使用以下方式下载
git clone https://hub.fastgit.org/ohmyzsh/ohmyzsh.git ~/.oh-my-zsh


# 复制zshrc
cp ~/.oh-my-zsh/templates/zshrc.zsh-template ~/.zshrc

主题设置

更多主题 https://github.com/ohmyzsh/ohmyzsh/wiki/Themes

修改.zshrc中的 ZSH_THEME 字段

vim ~/.zshrc 找到ZSH_THEME 字段
推荐使用: agnoster, candy

安装后,之前命令失效,解决方案

vim ~/.zshrc
# 第一行添加如下命令
PATH=/bin:/usr/bin:/usr/local/bin:${PATH}
export PATH

export LC_ALL=en_US.UTF-8  
export LANG=en_US.UTF-8
alias shopt='/usr/bin/shopt'
PATH=/bin:/usr/bin:/usr/local/bin:${PATH} 
export PATH

参考： https://www.jianshu.com/p/e54ad139711f