康达：找不到命令; Miniconda

Question

在我的iMac上安装Miniconda2。

    [d25gv047dhjr:~] keguoh% bash Desktop/Miniconda2-latest-MacOSX-x86_64.sh

    ...

    Prepending PATH=/Users/keguoh/miniconda2/bin to PATH in
    newly created /Users/keguoh/.bash_profile

但它不起作用。

    [d25gv047dhjr:~] keguoh% conda
    conda: Command not found.
    [d25gv047dhjr:~] keguoh% cat .bash_profile 

    # added by Miniconda2 4.0.5 installer
    export PATH="/Users/keguoh/miniconda2/bin:$PATH"$$

我花了3个多小时在网上搜索解决方案，但没有一个帮助。谢谢！

BTW，.bash_profile文件如下所示：

    [d25gv047dhjr:~] keguoh% cat .bash_profile 

    # added by Miniconda2 4.0.5 installer
    export PATH="/Users/keguoh/miniconda2/bin:$PATH"
    [d25gv047dhjr:~] keguoh%