Powershell检查文件夹结构是否存在

Question

我正在完成将批处理文件升级到PowerShell的任务。我必须执行一项需要检查文件夹结构是否存在的任务。 如果不是从它丢失的地方创建它。 还需要使用smtp发送一个关于状态的邮件...

example: 

D:\folder\folder1\folder2\folder3
E:\folder\folder1\folder2\folder3
E:\folderA\folderB\FolderC\FolderD\FolderE

如果只缺少FolderC和Rest从FolderC\\FolderD\\FolderE创建

如果从FolderB丢失，则从FolderB\\FolderC\\FolderD\\FolderE

Answer 1

这可能会更漂亮，但是......在这里，有很多方法可以做到这一点，具体取决于你想要如何使用它。

$SmtpServer = '192.168.1.2' #Replace this with IP adress to your SMTP-server
$Body='' #Two single quotation marks

$path = Read-Host 'Enter Path (Type Exit to quit)'

While ($path -ne 'Exit') {
    IF (Test-Path $path)  {
        $Body += "$path already exists `n" #Adds $path to $Body and breaks line
    }
    ELSE {
        New-Item $path -ItemType directory
        $Body += "$path was created `n" #Adds $path to $Body and breaks line
    }
    $path = Read-Host 'Enter Path (Type Exit to quit)'
}

IF($Body -ne '') {
    Send-Mailmessage -SmtpServer $SmtpServer -Subject "Folder status" -Body $Body
}

Answer 2

此功能可以满足您的需求，包括详细的日志。 将其复制粘贴或与脚本一起保存为Test-DirectoryTree.ps1并使用dot-sourcing加载：

$ScriptDir = Split-Path $script:MyInvocation.MyCommand.Path
. (Join-Path -Path $ScriptDir -ChildPath 'Test-DirectoryTree.ps1')

用法：

# Array of paths to check
$Paths = @(
    'D:\folder\folder1\folder2\folder3',
    'E:\folder\folder1\folder2\folder',
    'E:\folderA\folderB\FolderC\FolderD\FolderE'
)

# Store function output in $Log variable
# W\o "Create" switch  function will only report missing directories
$Log = $Paths | Test-DirectoryTree -Create

# Send email
Send-MailMessage -SmtpServer 'mail.company.com' -From 'script@company.com' -To 'admin@company.com' -Subject 'Folder status' -Body $Log

Test-DirectoryTree函数：

function Test-DirectoryTree
{
    [CmdletBinding()]
    Param
    (
        [Parameter(Mandatory = $true, ValueFromPipeline = $true)]
        [ValidateNotNullOrEmpty()]
        [string[]]$Paths,

        [switch]$Create
    )

    Begin
    {
        # Set path separator
        $Separator = '\'

        # Init array to hold log
        $Log = @()
    }

    Process
    {
        # For every path in array
        foreach ($Path in $Paths){

            # Init array to store existing paths
            $Tree = @()

            # Split path
            foreach ($Dir in $Path.Split($Separator)){
                # If not first element
                if($Tree)
                {
                    # Build path for current dir to check
                    $CurrDir = Join-Path -Path ($Tree -join $Separator) -ChildPath $Dir
                }
                else # If not first element
                {
                    # Check if root dir exist
                    if(!(Test-Path -LiteralPath $Dir -PathType Container) -and [System.IO.Path]::IsPathRooted($Dir))
                    {
                        Write-Error "Root folder '$Dir' is not valid!"
                        break
                    }
                    else
                    {
                        # Build path for current dir to check
                        $CurrDir = $Dir
                    }
                }

                # If current dir not exist
                if(!(Test-Path -LiteralPath $CurrDir -PathType Container))
                {
                    # Write message to log
                    $Log += "Folder doesn't exist: $CurrDir"

                    # If we asked to create missing dirs
                    if($Create)
                    {
                        # Try to create dir
                        try
                        {
                            New-Item -ItemType Directory -Path $CurrDir -ErrorAction Stop | Out-Null
                            $Log += "Folder created: $CurrDir"
                        }
                        catch
                        {
                            $Log += "Failed to create folder: $CurrDir"
                        }
                    }
                }

                # If current dir exist, do nothing and add it to existing paths
                $Tree += $Dir
            }
        }
    }

    End
    {
        # Return log
        return $Log
    }
}