Setting Windows PowerShell environment variables

I have found out that setting the PATH environment variable affects only the old command prompt. PowerShell seems to have different environment settings. How do I change the environment variables for PowerShell (v1)?

Note:

I want to make my changes permanent, so I don't have to set it every time I run PowerShell. Does PowerShell have a profile file? Something like Bash profile on Unix?

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Best Answer-推荐答案

If, some time during a PowerShell session, you need to see or to temporarily modify the PATH environment variable , you can type one of these commands:

$envath                             # shows the actual content
$envath = 'C:\foo;' + $envath     # attach to the beginning
$envath += ';C:\foo'                # attach to the end