配置mac上的PATH变量

Question

我有以下env文件，它会在shell启动时运行：

PATH=/Users/paulcowan/bin:$PATH
PATH=$PATH:~/bin
PATH=$PATH:$HOME/.local/bin:$PATH
PATH=$PATH:/usr/local/bin:/usr/bin:/bin
PATH=$PATH:"$RBENV_ROOT/bin:$PATH"
export PATH

但是当我运行echo $PATH

时

我明白了：

/Users/paulcowan/.nvm/versions/node/v5.0.0/bin:/usr/local/rbenv/shims:PATH:/Users/paulcowan/.local/bin:/Users/paulcowan/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/MacGPG2/bin:/usr/local/rbenv/shims:PATH:/Users/paulcowan/.local/bin:/Users/paulcowan/bin:/Users/paulcowan/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/rbenv/bin:PATH:/Users/paulcowan/.local/bin:/Users/paulcowan/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/MacGPG2/bin:/usr/local/rbenv/shims:PATH:/Users/paulcowan/.local/bin:/Users/paulcowan/bin:/Users/paulcowan/bin:/usr/local/bin:/usr/bin:/bin

重复相同的值。

如何正确配置路径？

Answer 1

你在几行的开头和结尾重复了$ PATH：

PATH=$PATH:$HOME/.local/bin:$PATH
PATH=$PATH:"$RBENV_ROOT/bin:$PATH"

为什么不这样设置呢？

export PATH=/Users/paulcowan/bin:~/bin:$HOME/.local/bin:/usr/local/bin:/usr/bin:/bin:$RBENV_ROOT/bin:$PATH

Answer 2

如果我很清楚你的脚本试图做什么，那么正确的代码可能是：

PATH=/Users/paulcowan/bin:$PATH
PATH=~/bin:$PATH
PATH=$HOME/.local/bin:$PATH
PATH=$PATH:/usr/local/bin
PATH=/usr/bin:$PATH
PATH=/bin:$PATH
PATH=$PATH:$RBENV_ROOT/bin
export PATH