之前使用的是 bash,自从使用 zsh 后，在执行 source ~/.bashrc 的时候出现下面的 command not found 的错误。

下面是错误信息

/home/trsky/.bashrc:16: command not found: shopt
/home/trsky/.bashrc:33: command not found: shopt
/home/trsky/.bashrc:116: command not found: shopt
/usr/share/bash-completion/bash_completion:51: command not found: shopt
/usr/share/bash-completion/bash_completion:57: command not found: complete
/usr/share/bash-completion/bash_completion:62: command not found: complete
/usr/share/bash-completion/bash_completion:65: command not found: complete
/usr/share/bash-completion/bash_completion:68: command not found: complete
/usr/share/bash-completion/bash_completion:71: command not found: complete
/usr/share/bash-completion/bash_completion:74: command not found: complete
/usr/share/bash-completion/bash_completion:77: command not found: complete
/usr/share/bash-completion/bash_completion:80: command not found: complete
/usr/share/bash-completion/bash_completion:83: command not found: complete
/usr/share/bash-completion/bash_completion:86: command not found: complete
/usr/share/bash-completion/bash_completion:89: command not found: complete
/usr/share/bash-completion/bash_completion:92: command not found: complete
/usr/share/bash-completion/bash_completion:1996: parse error near `\n'

输出错误信息 

这里有个 stack overflow 的回应信息 
shopt command not found in .bashrc after shell updation 

解决 
博主在 linux 上利用 Anaconda 同时配置了多个版本的 python ，在修改了~/.bashrc 文件企图更改系统默认的 python 之后 ，在 zsh 上执行了 source ~/.bashrc 。很明显这是个错误的认识

好吧，正确的做法如下：

将所需配置修改写入~/.zshrc
执行 source ~/.zshrc
--------------------- 
作者：种子选手 
来源：CSDN 
原文：https://blog.csdn.net/qq_36148847/article/details/79261067 
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