我写了以下代码:
cls
function GetFoo() {
function GetBar() {
$bar = "bar"
$bar
}
$foo = "foo"
$bar = GetBar
$foo
$bar
}
$cred = Get-Credential "firmwidesrabhi_adm"
$result = Invoke-Command -Credential $cred -ComputerName localhost
-ScriptBlock ${function:GetFoo}
Write-Host $result[0]
Write-Host $result[1]
它有效,但我不想定义GetFoo
内部的GetBar
。
我可以做这样的事情吗?
cls
function GetBar() {
$bar = "bar"
$bar
}
function GetFoo() {
$foo = "foo"
$bar = GetBar
$foo
$bar
}
$cred = Get-Credential "firmwidesrabhi_adm"
$result = Invoke-Command -Credential $cred -ComputerName localhost
-ScriptBlock ${function:GetFoo; function:GetBar; call GetFoo}
Write-Host $result[0]
Write-Host $result[1]
基本上,我选择性地将我想要的功能放在脚本块中,然后调用其中一个。这样,我就不必在功能内定义函数,可以通过注入我想成为该脚本屏蔽的一部分的函数来构造脚本键。
问题是Invoke-Command
只能看到ScriptBlock
内部的内容,它看不到外部的功能。如果您真的想要 - 您可以按一行运行所有内容,例如:
$result = Invoke-Command -ComputerName localhost -ScriptBlock { function GetBar() { $bar = "bar"; $bar }; function GetFoo() { $foo = "foo"; $bar = GetBar; $foo; $bar }; GetFoo }
,但我个人建议您将功能保存在脚本中,并使用-FilePath
参数调用Invoke-Command
,例如:
$result = Invoke-Command -ComputerName localhost -FilePath "1.ps1"
我最近有效:
function GetBar() {
$bar = "bar"
$bar
}
function GetFoo() {
$foo = "foo"
$bar = GetBar
$foo
$bar
}
$NewScriptBlock = [scriptblock]::Create("function GetBar() { ${function:GetBar} } function GetFoo() { ${function:GetFoo} } GetFoo")
Invoke-Command -ComputerName localhost -ScriptBlock $NewScriptBlock
另外,您可以使用以下方式备用一行:
Invoke-Command -ComputerName localhost -ScriptBlock ([scriptblock]::Create("function GetBar() { ${function:GetBar} } function GetFoo() { ${function:GetFoo} } GetFoo"))
诀窍是ScriptBlock类的创建方法添加了函数的代码 inter和最终括号中不添加代码。您需要自己添加,加上最终调用。
我知道这是一个旧线程,但我希望它对某人有帮助。
[CmdletBinding()]
param()
$barScriptBlock = {
function GetBar() {
$bar = "bar"
$bar
}
}
$fooScriptBlock = {
function GetFoo() {
$foo = "foo"
$bar = GetBar
$foo
$bar
}
}
# Concatenate all functions into a script block; add a parameter for extra credit.
$scriptBlockString = @"
param(`$hello)
$($barScriptBlock.ToString())
$($fooScriptBlock.ToString())
`$hello
GetFoo
"@
Write-Verbose $scriptBlockString
# Convert combined string to script block.
$finalScriptBlock = [ScriptBlock]::Create($scriptBlockString)
# Run synchronously, passing runtime parameter.
$result = & $finalScriptBlock "Hola"
# (Async results would not be reiably accessed here yet.)
Write-Host $result[0]
Write-Host $result[1]
Write-Host $result[2]
在乔·扎莫拉(Joe Zamora)的答案中构建的构建,这是我认为更适合这个问题的命令:
$result = Invoke-Command -Credential $cred -ScriptBlock ([ScriptBlock]::Create("${function:GetFoo}; ${function:GetBar}; GetFoo"))
这就是我的方式:
#get my script path
$this_Script = $MyInvocation.MyCommand.path
#get get all my location functions and filters
$this_functions = Get-Item FUNCTION:* | Where-Object { $_.ScriptBlock.File -eq $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath( $this_Script ) }
$mything | ForeachObject -Parallel {
$this_functions = $using:this_functions
$this_functions | Foreach-Object {
#create function scriptblocks
$sb = "$($_.CommandType) $($_.name) {$($_.ScriptBlock) }" ;
Invoke-Expression $sb ;
}
}
以上仅在PWSH核心中使用。