我发现有一些文件可能会影响macOS中的$PATH变量(适用于我，10.11 El Capitan)，列出如下:

As the top voted answer said, vi /etc/paths, which is recommended from my point of view. Also don't forget the /etc/paths.d directory, which contains files may affect the $PATH variable, set the git and mono-command path in my case. You can ls -l /etc/paths.d to list items and rm /etc/paths.d/path_you_dislike to remove items. If you're using a "bash" environment (the default Terminal.app, for example), you should check out ~/.bash_profile or ~/.bashrc. There may be not that file yet, but these two files have effects on the $PATH. If you're using a "zsh" environment (Oh-My-Zsh, for example), you should check out ~./zshrc instead of ~/.bash* thing.

不要忘记重新启动所有终端窗口，然后回显$PATH。$PATH字符串将是PATH_SET_IN_3&4:PATH_SET_IN_1:PATH_SET_IN_2。

注意，前两种方式(/etc/paths和/etc/path.d)在/目录下，这将影响您计算机中的所有帐户，而最后两种方式(~/. path.d)在/目录下。bash*或~/.zsh*)在~/目录下(也就是/Users/yourusername/)，这只会影响你的帐户设置。

阅读更多:Mac OS X:设置/更改$PATH变量- nixCraft

你必须把它添加到/etc/paths.

参考资料(对我有用):这里

显示所有隐藏文件，如.bash_profile和.zshrc $ ls -a

从macOS Catalina开始，mac使用zsh而不是bash。MAC默认使用zsh。 检查哪个shell正在运行:

$ echo $SHELL
/usr/zsh

$ cd $HOME
$ open -e .zshrc

或者如果使用vim

$ vi .zshrc

然后像这样加进去

$ export my_var="/path/where/it/exists"
$ export PATH=$PATH:/$my_var/bin

例如:如果在/Applications中安装了名为:myapp的应用程序 然后

export MYAPP_HOME=/Applications/myapp
export PATH=$PATH:$MYAPP_HOME/bin

或快捷方式

export PATH=${PATH}:/Applications/myapp/bin

祝你一生幸福!!稍后谢谢我

你还可以加上这个

if [ -f ~/.bashrc ]; then
    . ~/.bashrc
fi

~ /。Bash_profile然后创建~/。bashrc，你可以添加更多的路径到PATH。一个例子。

export PATH=$PATH:.

我发现有一些文件可能会影响macOS中的$PATH变量(适用于我，10.11 El Capitan)，列出如下:

As the top voted answer said, vi /etc/paths, which is recommended from my point of view. Also don't forget the /etc/paths.d directory, which contains files may affect the $PATH variable, set the git and mono-command path in my case. You can ls -l /etc/paths.d to list items and rm /etc/paths.d/path_you_dislike to remove items. If you're using a "bash" environment (the default Terminal.app, for example), you should check out ~/.bash_profile or ~/.bashrc. There may be not that file yet, but these two files have effects on the $PATH. If you're using a "zsh" environment (Oh-My-Zsh, for example), you should check out ~./zshrc instead of ~/.bash* thing.

不要忘记重新启动所有终端窗口，然后回显$PATH。$PATH字符串将是PATH_SET_IN_3&4:PATH_SET_IN_1:PATH_SET_IN_2。

注意，前两种方式(/etc/paths和/etc/path.d)在/目录下，这将影响您计算机中的所有帐户，而最后两种方式(~/. path.d)在/目录下。bash*或~/.zsh*)在~/目录下(也就是/Users/yourusername/)，这只会影响你的帐户设置。

阅读更多:Mac OS X:设置/更改$PATH变量- nixCraft

sudo nano /etc/paths

现在找到命令路径，我给出了一个颤振路径设置的例子。

/Users/username/development/flutter/bin

现在ctrl +x，然后y。重新打开终端并检查。