Powershell创建文件夹时的动态路径

Question

我想创建一个文件夹，但我不知道如何使用变量来定义路径。

由于是：

New-Item -ItemType directory -Path "C:\Users\tizio.caio\Desktop\BACKUP_$((Get-Date).ToString('yyyyMMdd'))" 

我想，以使未来的返修率更容易变量来代替C:\Users\tizio.caio\Desktop\。

Answer 1

假设你总是希望当前用户的桌面，你可以使用Environment.GetFolderPath() method检索路径，然后使用Join-Path cmdlet将其与目录名称相结合：

$DesktopPath = [System.Environment]::GetFolderPath([System.Environment+SpecialFolder]::Desktop) 
$DirectoryName = "BACKUP_$((Get-Date).ToString('yyyyMMdd'))" 
$DirectoryPath = Join-Path $DesktopPath $DirectoryName 

你可以打包成一个功能需要-Path参数，如果你希望能够覆盖它：

function New-BackupDirectory 
{ 
    param(
     [ValidateScript({Test-Path $_ -PathType Container})] 
     $Path = [System.Environment]::GetFolderPath([System.Environment+SpecialFolder]::Desktop) 
    ) 

    $DirectoryName = "BACKUP_$((Get-Date).ToString('yyyyMMdd'))" 
    $DirectoryPath = Join-Path $Path $DirectoryName 

    mkdir $DirectoryPath 
} 

Answer 2

我会分裂的目录和文件名，并使用environment variableUSERPROFILE

$var = $env:USERPROFILE + "\Desktop\" 
$backup = "BACKUP_$((Get-Date).ToString('yyyyMMdd'))" 

New-Item -ItemType directory -Path "$var$backup" 

Answer 3

取决于你想如何简单去：

$folderpath = "C:\Users\tizio.caio\Desktop" 
New-Item -ItemType directory -Path "$folderpath\BACKUP_$((Get-Date).ToString('yyyyMMdd'))" 

或者你也可以将多个变量：

$folderpath = "C:\Users\tizio.caio\Desktop" 
$backuppath = "$folderpath\BACKUP_$((Get-Date).ToString('yyyyMMdd'))" 
New-Item -ItemType directory -Path $backuppath