一个 Powershell 脚本使用参数调用另一个 [英] One Powershell Script calling another with parameters

问题描述

我正在尝试调用另一个带有参数的 PS 脚本 B.ps1:

I am attempting to call another PS script B.ps1 which takes a parameter:

Invoke-Expression "C:\AzureFileShare\MEDsys\Powershell Scripts\B.ps1 -ServerName medsys-dev"

然后在B.ps1:

Param([string]$ServerName)
...
...

当我尝试执行 Invoke-Expression 时，出现以下错误:

When I attempt to execute Invoke-Expression, I get the following error:

术语C:\AzureFileShare\MEDsys\Powershell"未被识别为 cmdlet、函数、脚本文件或可运行程序的名称.

The term 'C:\AzureFileShare\MEDsys\Powershell' is not recognized as the name of a cmdlet, function, script file, or operable program.

我不知道为什么 PowerShell 会抱怨这个，因为 B.ps1 脚本确实存在于引用的文件夹中.除非有其他问题?

I don't know why PowerShell is complaining about this since the B.ps1 script does actually exist in the referenced folder. Unless something else is wrong?

推荐答案

dot-sourcing the script 如我的原始答案所示，将脚本和变量、对象、函数等加载到当前会话中 - 这可能在某些情况下会产生意想不到的后果.

dot-sourcing the script as shown in my original answer will load the script and variables, objects, functions, etc. into the current session - this might have unintended consequences in certain circumstances.

另一种方法是使用 & 调用运算符，它在自己的范围内运行脚本:

The alternative is to use the & call operator which runs the script in its own scope:

& "C:\AzureFileShare\MEDsys\Powershell Scripts\B.ps1" -ServerName medsys-dev

<小时>

问题是您的文件路径中有一个空格，因此您需要将整个路径用单引号括起来，以便正确识别.(参见 about_Quoting_Rulesa> 有关单引号和双引号的更多信息).它最终成为一个凌乱的命令:

---

The problem is you have a space in your file path so you need to wrap the entire path in single quotes so it's recognised correctly. (See about_Quoting_Rules for more info on single vs double quotes). It ends up being a messy command in the end:

Invoke-Expression "&'C:\AzureFileShare\MEDsys\Powershell Scripts\B.ps1' -ServerName medsys-dev"

dot-sourcing 更好，因为您只需将脚本路径用双引号括起来并保持原样:

dot-sourcing is much nicer as you just wrap the script path in double quotes and leave the params as-is:

."C:\AzureFileShare\MEDsys\Powershell Scripts\B.ps1" -ServerName medsys-dev

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