PowerShell的存在本地用戶ADSI

Question

我得到了下面的代碼（工作）：

#Import File 
$Users = Import-Csv C:\Users\Administrator\Desktop\userImport\users.csv 

# Setting data 
$compname = hostname 
$computer = [ADSI]"WinNT://$compname" 
$userGroup = [ADSI]"WinNT://./Users,Group" 

# Loop to add all users 
$Users | % { 

    # Create user itself 
    $createUser = $computer.Create("User",$_.userid) 

    # Set password (print1!) 
    $createUser.SetPassword($_.password) 
    $createUser.SetInfo() 

    # Create extra data 
    $createUser.Description = "Import via powershell" 
    $createUser.FullName = $_.'full name' 
    $createUser.SetInfo() 

    # Set standard flags (Password expire/Password change/Account disabled) 
    $createUser.UserFlags = 64 + 65536 # ADS_UF_PASSWD_CANT_CHANGE + ADS_UF_DONT_EXPIRE_PASSWD 
    $createUser.SetInfo() 

    # Adduser to standard user group ("SERVER02\Users") 
    $userGroup.Add($createUser.Path) 

    # Show that user X as been added 
    $username = $_.'full name' 
    echo "User $username added" 
} 

但怎麼可能，如果用戶已經存在建立一個檢查？ 在網絡上我真的不能找到什麼：X

Answer 1

你可以試試這個：

#Import File 
$Users = Import-Csv C:\Users\Administrator\Desktop\userImport\users.csv 

# Setting data 
$compname = hostname 
$computer = [ADSI]"WinNT://$compname" 
$userGroup = [ADSI]"WinNT://./Users,Group" 

$localUsers = $computer.Children | where {$_.SchemaClassName -eq 'user'} | % {$_.name[0].ToString()} 

# Loop to add all users 
$Users | % { 

    if($localUsers -NotContains $_.userID) 
    { 
     ... do your job here.... 
    } 
    else 
    { 
     write-host "User $($_.userID) already exists" 
    } 
} 

Answer 2

不幸的是，ADSI界面似乎在Windows 8.1被打破。這裏是我的解決方法：

if (& net users | select-string "UserName") { 
    # user exists 
} else { 
    # user not found 
} 

Answer 3

可以使用ADSI的靜態Exists功能檢查，如果一個用戶存在：

[ADSI]::Exists('WinNT://./username') 

但需注意的是：[ADSI]::Exists throws an exception instead of returning False