Question

我的PowerShell脚本有以下结果：

SQLINST15    : MSSQL11.SQLINST15
SQLINST16    : MSSQL12.SQLINST16
SQLINST17    : MSSQL12.SQLINST17
SQLINST18    : MSSQL12.SQLINST18
SQLINST19    : MSSQL13.SQLINST19
SQLINST20    : MSSQL13.SQLINST20
SQLINST13    : MSSQL10_50.SQLINST13
SQLINST1     : MSSQL10_50.SQLINST1
SQLINST2     : MSSQL10_50.SQLINST2
SQLINST3     : MSSQL10_50.SQLINST3
SQLINST4     : MSSQL10_50.SQLINST4
SQLINST5     : MSSQL10_50.SQLINST5
SQLINST6     : MSSQL10_50.SQLINST6
SQLINST21    : MSSQL12.SQLINST21

我正在尝试删除所有包含SQLINST%Number% :或在冒号（包括）之前的字符串，以便最终我的数组（$SQLNamedInstanceArray）将如下所示：

MSSQL11.SQLINST15
MSSQL12.SQLINST16
MSSQL12.SQLINST17
MSSQL12.SQLINST18
MSSQL13.SQLINST19
MSSQL13.SQLINST20
MSSQL10_50.SQLINST13
MSSQL10_50.SQLINST1
MSSQL10_50.SQLINST2
MSSQL10_50.SQLINST3
MSSQL10_50.SQLINST4
MSSQL10_50.SQLINST5
MSSQL10_50.SQLINST6
MSSQL12.SQLINST2

这是我当前的PowerShell代码：

$RegistrySQLPath = 'HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server\Instance Names\SQL'
Set-Location $RegistrySQLPath
$SQLNamedInstanceArray = (Get-ItemProperty -Path $RegistrySQLPath | Out-String) -split "`r`n" | Select-String MSSQL
$SQLNamedInstanceArray

Answer 1

看起来像正则表达式匹配：

$SQLNamedInstanceArray = "SQLINST15    : MSSQL11.SQLINST15",
"SQLINST16    : MSSQL12.SQLINST16",
"SQLINST17    : MSSQL12.SQLINST17",
"SQLINST18    : MSSQL12.SQLINST18",
"SQLINST19    : MSSQL13.SQLINST19",
"SQLINST20    : MSSQL13.SQLINST20",
"SQLINST13    : MSSQL10_50.SQLINST13",
"SQLINST1     : MSSQL10_50.SQLINST1",
"SQLINST2     : MSSQL10_50.SQLINST2",
"SQLINST3     : MSSQL10_50.SQLINST3",
"SQLINST4     : MSSQL10_50.SQLINST4",
"SQLINST5     : MSSQL10_50.SQLINST5",
"SQLINST6     : MSSQL10_50.SQLINST6",
"SQLINST21    : MSSQL12.SQLINST21"

$SQLNamedInstanceArray | % { [Regex]::Match($_, '(?<=: ).*').Value }

Answer 2

首先不要将注册表数据转换为字符串，因为这通常只会使事情变得复杂。从原始注册表数据中提取值要容易得多。

从注册表子项中删除PS*属性，以便仅使用实例名称获取注册表值。然后，使用固有属性PSObject扩展其余对象属性的值。

$exclude = 'PSPath', 'PSParentPath', 'PSChildName', 'PSDrive', 'PSProvider'
Get-ItemProperty -Path $RegistrySQLPath |
    Select-Object -Property * -ExcludeProperty $exclude |
    ForEach-Object { $_.PSObject.Properties.Value }

从数组中删除特定的字符串

2 个答案: