Unix PATH覆盖命令 [英] Unix PATH override commands

问题描述

我们假设我的 PATH =/ usr / bin ... /root/.rbenv/shims

我在 / usr / bin 和 /root/.rbenv/shims 中有可执行文件（ruby）。如何在 /root/.rbenv/shims 中调用ruby？

解决方案 PATH 中将 /root/.rbenv/shims 首先 ：

  export PATH = / root / .rbenv / SHIMS：$ PATH 
  / pre> 
 
 
（在运行此命令之前，您必须确保 PATH 已存在 - 如果不存在，它将当前的工作目录添加到您的 PATH  以及中，这几乎总是一个错误。）
 
Let's say my PATH="/usr/bin ... /root/.rbenv/shims"

I have an executable (ruby) in /usr/bin and /root/.rbenv/shims. How would I make the ruby in /root/.rbenv/shims be called?
解决方案
Put /root/.rbenv/shims first in your PATH:
export PATH=/root/.rbenv/SHIMS:$PATH
(Before running this command, you must be sure PATH already exists -- if it doesn't, it adds the current working directory to your PATH as well, which is almost always a mistake.)

                        
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