函數在PowerShell中返回布爾值

Question

我使用PS Remoting，Powershell 2.0。

我需要調用返回布爾值（$ true或$ false）的函數。

我的功能：

Function TryDisableClientForCredSSP() 
{ 
    try 
    { 
     WriteTrace "[TryDisableClientForCredSSP]. Disable-WSManCredSSP -Role Client " 
     $script=Convert-StringToScriptBlock("Disable-WSManCredSSP -Role Client ") 
     Caller($script) 

     WriteTrace "[TryDisableClientForCredSSP]. winrm get winrm/config/client/auth [($env:COMPUTERNAME)]" 
     $script=Convert-StringToScriptBlock("winrm get winrm/config/client/auth") 
     Caller($script); 

     return $true; 
    } 
    catch 
    { 
     Write-Verbose "[TryDisableClientForCredSSP] Error " 
     Write-Verbose $_ 
     Write-Host $_.Exception.Message`r`n 
     return $false; 
    } 
} 

注：WRITETRACE功能僅僅只能做寫主機。

我使用它：

$ok = TryDisableClientForCredSSP; 
    WriteTrace "[TryDisableClientForCredSSP]. $ok" 
    if ($ok -eq $true) 
    { 
     WriteTrace "[TryDisableClientForCredSSP]. OK true" 
    } 
    else 
    { 
     WriteTrace "[TryDisableClientForCredSSP]. KO false" 
    } 

我得到這樣的輸出：

[TryDisableClientForCredSSP]. Auth  Basic = true  Digest = true  Kerberos = true  Negotiate = true  Certificate = true  CredSSP = false True 
[TryDisableClientForCredSSP]. OK true 

我想這條線輸出 「[TryDisableClientForCredSSP]真。」

WriteTrace "[TryDisableClientForCredSSP]. $ok" 

有什麼建議？

Answer 1

函數返回無論每個命令吐出到輸出流。嘗試刪除像這樣的輸出：

[void]WriteTrace "[TryDisableClientForCredSSP]. Disable-WSManCredSSP -Role Client " 
    $script=Convert-StringToScriptBlock("Disable-WSManCredSSP -Role Client ") 
    [void]Caller($script) 

    [void]WriteTrace "[TryDisableClientForCredSSP]. winrm get winrm/config/client/auth [($env:COMPUTERNAME)]" 
    $script=Convert-StringToScriptBlock("winrm get winrm/config/client/auth") 
    [void]Caller($script); 

    return $true;