bash 删除函数定义（unalias 等价物）
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Remove function definition (unalias equivalent)
提问by greg0ire
I'm currently building a program which adds to the current user's shell depending on the project he's working on, by defining per-project aliases and functions. These aliases and functions may and will certainly have the same name like for instance cdproj, which would cdto the project's root.
我目前正在构建一个程序，该程序通过定义每个项目的别名和函数，根据他正在处理的项目添加到当前用户的 shell。这些别名和函数可能并且肯定会具有相同的名称，例如cdproj，cd对于项目的根目录。
I would like to remove previously defined aliases and functions when changing project (before (re)defining aliases and functions for the other project. I know I can remove an alias with unaliasin both bash and zsh, but how would I do the same for a function?
我想在更改项目时删除以前定义的别名和函数（在（重新）定义另一个项目的别名和函数之前。我知道我可以unalias在 bash 和 zsh 中删除别名，但是我将如何为一个功能？
回答by ennuikiller
unset -f my_function
will remove (or unset) the function my_function
将删除（或取消设置）函数 my_function
回答by theoden8
unfunction my_functionin zsh
unfunction my_function在 zsh
Perhaps, I'm a bit late in this good old '15, but this feature persists.
也许，我在这个 15 年的美好时光中有点晚了，但这个功能仍然存在。
