IDEA can not get the complete path variable

Hi:

When I create a node application in IDEA,and try to run the command `node` in the terminal, however it told me that the `node` command can not found.

Then I run the `path` to get the variables:http://imgbin.org/images/20851.png

You will find that the node does not exist, however once I run the command in the window cmd:http://imgbin.org/images/20852.png

The `node` do exist in the path.

I am not sure why?

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IDEA 13.1.5 with window 8.1 64bit