Powershell：獲取A_Script.ps1執行位置的路徑

Question

我想執行位於script.ps1文件旁邊的program.exe ... 如何獲取此位置/文件夾？ （這不是一個固定的位置/文件夾，可以是一個USB記憶棒或網絡驅動器等）

我曾嘗試使用

$MyInvocation.MyCommand.Path 

但它似乎並沒有被幫我（還是我中號不使用它的分辯方式）

由於

Answer 1

這是模式I通常使用：

$exeName  = "MyApplication.exe" 
$scriptFolder = Split-Path -Parent $MyInvocation.MyCommand.Path 
$exeFullPath = Join-Path -Path $scriptFolder -ChildPath $exeName 

$MyInvocation是一個自動變量。

包含當前命令的信息，如姓名， 參數，參數值，以及有關命令 如何啓動，調用，或「調用」，如腳本的名稱 稱爲當前命令。

請注意，由$ MyInvocation.MyCommand返回的對象根據執行它的上下文而不同。

類型將scriptinfo從PowerShell命令窗口中返回，發現缺少Path屬性：

TypeName: System.Management.Automation.ScriptInfo 

Name   MemberType  Definition 
----   ----------  ---------- 
Equals  Method   bool Equals(System.Object obj) 
GetHashCode Method   int GetHashCode() 
GetType  Method   type GetType() 
ToString  Method   string ToString() 
CommandType Property  System.Management.Automation.CommandTypes CommandType {get;} 
Definition Property  System.String Definition {get;} 
Module  Property  System.Management.Automation.PSModuleInfo Module {get;} 
ModuleName Property  System.String ModuleName {get;} 
Name   Property  System.String Name {get;} 
OutputType Property  System.Collections.ObjectModel.ReadOnlyCollection`1[[System.Management.Automation.PSTyp... 
Parameters Property  System.Collections.Generic.Dictionary`2[[System.String, mscorlib, Version=2.0.0.0, Cult... 
ParameterSets Property  System.Collections.ObjectModel.ReadOnlyCollection`1[[System.Management.Automation.Comma... 
ScriptBlock Property  System.Management.Automation.ScriptBlock ScriptBlock {get;} 
Visibility Property  System.Management.Automation.SessionStateEntryVisibility Visibility {get;set;} 
HelpUri  ScriptProperty System.Object HelpUri {get=try... 

而類型爲ExternalScriptInfo從腳本運行時，注意附加屬性ScriptContents和路徑等

TypeName: System.Management.Automation.ExternalScriptInfo 

Name    MemberType  Definition 
----    ----------  ---------- 
Equals   Method   bool Equals(System.Object obj) 
GetHashCode  Method   int GetHashCode() 
GetType   Method   type GetType() 
ToString   Method   string ToString() 
CommandType  Property  System.Management.Automation.CommandTypes CommandType {get;} 
Definition  Property  System.String Definition {get;} 
Module   Property  System.Management.Automation.PSModuleInfo Module {get;} 
ModuleName  Property  System.String ModuleName {get;} 
Name    Property  System.String Name {get;} 
OriginalEncoding Property  System.Text.Encoding OriginalEncoding {get;} 
OutputType  Property  System.Collections.ObjectModel.ReadOnlyCollection`1[[System.Management.Automation.PS... 
Parameters  Property  System.Collections.Generic.Dictionary`2[[System.String, mscorlib, Version=2.0.0.0, C... 
ParameterSets Property  System.Collections.ObjectModel.ReadOnlyCollection`1[[System.Management.Automation.Co... 
Path    Property  System.String Path {get;} 
ScriptBlock  Property  System.Management.Automation.ScriptBlock ScriptBlock {get;} 
ScriptContents Property  System.String ScriptContents {get;} 
Visibility  Property  System.Management.Automation.SessionStateEntryVisibility Visibility {get;set;} 
HelpUri   ScriptProperty System.Object HelpUri {get=try...