gistfile1.txt

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output redirection to Unicode text where
    α is a command
    ß and γ are file names or PowerShell variable names
    α > ß         only regular output                              - override
    α >> ß        only regular output                              - append
    α 2> ß        only error output                                - override
    α 2>> ß       only error output                                - append
    α 2>&1> ß     both regular output and error output, merged     - overide
    α 2>&1>> ß    both regular output and error output, merged     - append
    α >ß 2>γ      both regular output and error output, separately - both override
    α >>ß 2>>γ    both regular output and error output, separately - both append
    α >ß 2>>γ     both regular output and error output, separately - regular override, error append
    α >>ß 2>γ     both regular output and error output, separately - regular append, error override
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 The PowerShell redirection operators use the following characters to represent each output stream.
 Here is the full set of streams available for `>` redirection:
    *   All
    1   Success        Write-Output
    2   Errors         Write-Error
    3   Warnings       Write-Warning
    4   Verbose        Write-Verbose
    5   Debug          Write-Debug
    6   Informational  Write-Host in pswh, and Write-Information in PowerShell 5
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 introduced in Windows PowerShell 3.0: All (*), Warning (3), Verbose (4) and Debug (5)
 introduced in Windows PowerShell 5.0: Informational messages (6)
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