删除哈希表中powershell中的部分字符串

我有司机名单

$HashTable = Get-WindowsDriver –Online -All | Where-Object {$_.Driver -like "oem*.inf"} | Select-Object Driver, OriginalFileName, ClassDescription, ProviderName, Date, Version
Write-Host "All installed third-party drivers" -ForegroundColor Yellow
$HashTable | Sort-Object ClassDescription | Format-Table

该表在OriginalFileName列中显示完整的inf文件路径。我需要切断整个路径

C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf

到

所以在所有行中都是这样。

试试这个-

$FullPath = "C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf"
$Required = $FullPath.Split("\")[-1]

试试这个-

$FullPath = "C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf"
$Required = $FullPath.Split("\")[-1]

---

另一个解决方案是

RegEx

one：

$FullPath = "C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf"
$FullPath -match '.*\\(.*)$'
$Required = $matches[1]

---

*\\（.*）$

匹配最后一个破折号

\

之后和行尾之前的所有字符

$

另一个解决方案是

正则表达式

一个：

$FullPath = "C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf"
$FullPath -match '.*\\(.*)$'
$Required = $matches[1]

---

*\\（.*）$

匹配最后一个破折号

\

之后和行尾

$

之前的所有字符要从完整路径拆分文件名，可以使用Powershells

split path

cmdlet，如下所示：

$FullPath = "C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf"
$FileName = $FullPath | Split-Path -Leaf

$FullPath = "C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf"
$FileName = [System.IO.Path]::GetFileName($FullPath)

或者像这样使用.NET：

$FullPath = "C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf"
$FileName = $FullPath | Split-Path -Leaf

$FullPath = "C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf"
$FileName = [System.IO.Path]::GetFileName($FullPath)

在您的情况下，我将使用计算属性填充哈希表：

$HashTable = Get-WindowsDriver –Online -All | 
                Where-Object {$_.Driver -like "oem*.inf"} | 
                Select-Object Driver, @{Name = 'FileName'; Expression = {$_.OriginalFileName | Split-Path -Leaf}},
                              ClassDescription, ProviderName, Date, Version

Write-Host "All installed third-party drivers" -ForegroundColor Yellow
$HashTable | Sort-Object ClassDescription | Format-Table

---

要从完整路径拆分文件名，可以使用Powershells

split path

cmdlet，如下所示：

$FullPath = "C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf"
$FileName = $FullPath | Split-Path -Leaf

$FullPath = "C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf"
$FileName = [System.IO.Path]::GetFileName($FullPath)

或者像这样使用.NET：

$FullPath = "C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf"
$FileName = $FullPath | Split-Path -Leaf

$FullPath = "C:\Windows\System32\DriverStore\FileRepository\pantherpointsystem.inf_amd64_bde4cf569a728803\pantherpointsystem.inf"
$FileName = [System.IO.Path]::GetFileName($FullPath)

在您的情况下，我将使用计算属性填充哈希表：

$HashTable = Get-WindowsDriver –Online -All | 
                Where-Object {$_.Driver -like "oem*.inf"} | 
                Select-Object Driver, @{Name = 'FileName'; Expression = {$_.OriginalFileName | Split-Path -Leaf}},
                              ClassDescription, ProviderName, Date, Version

Write-Host "All installed third-party drivers" -ForegroundColor Yellow
$HashTable | Sort-Object ClassDescription | Format-Table

可能的重复可能的重复