centos8系統安裝oh my zsh

yum install -y zsh #安裝zsh

cat /etc/shells #驗證安裝

chsh -s /bin/zsh #切換shell為zsh

exit #退出終端重連接

echo $SHELL #驗證

yum install git

sh -c "$(curl -fsSL https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh)" #curl方式安裝，與wget方式二擇一即可
sh -c "$(wget https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh -O -)" #wget方式安裝，與上邊curl二擇一即可

ls ~/.oh-my-zsh/themes #查看所有主題

vim ~/.zshrc #編輯選擇zsh主題：加入此條命令“alias c = "clear"”，找到修改“ZSH_THEME="bira"”

source ~/.zshrc #刷新使主題生效