什麼是Shell?

Shell是一種交互指令的介面

其实 zsh 也是一种 shell ,但是并不是我们系统默认的 shell ,unix 衍生系统的默认shell 都是 bash

Shell有好幾種，蘋果Mac系統預設是使用bash。所以可以直接切換成zsh不用安裝oh-my-zsh。

/bin/bash

/bin/csh

/bin/ksh

/bin/sh

/bin/tcsh

/bin/zsh

sudo sh -c "echo $(which zsh) >> /etc/shells"

chsh -s $(which zsh)

cat /etc/shells

vim ~/.z

oh-my-zsh

不用裝iTerms 2

oh-my-zsh的操作介面目錄提示樣式

https://github.com/robbyrussell/oh-my-zsh/wiki/Themes

oh-my-zsh主題讀取的目錄路徑

/Users/huyy01/.oh-my-zsh/custom/themes

這兩個oh-my-zsh樣式不錯

https://github.com/jeremyFreeAgent/oh-my-zsh-powerline-theme

https://github.com/caiogondim/bullet-train.zsh

https://github.com/bhilburn/powerlevel9k/wiki/Install-Instructions#step-1-install-powerlevel9k