How can I get the file system location of a PowerShell script?

I have a PowerShell script located at D:\temp.

Whe开发者_Python百科n I run this script, I want the current location of the file to be listed. How do I do this?

For example, this code would accomplish it in a DOS batch file; I am trying to convert this to a PowerShell script...

FOR /f "usebackq tokens=*" %%a IN ('%0') DO SET this_cmds_dir=%%~dpa
CD /d "%this_cmds_dir%"

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PowerShell 3+

The path of a running scripts is:

$PSCommandPath

Its directory is:

$PSScriptRoot

PowerShell 2

The path of a running scripts is:

$MyInvocation.MyCommand.Path

Its directory is:

$PSScriptRoot = Split-Path $MyInvocation.MyCommand.Path -Parent

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Roman Kuzmin answered the question imho. I'll just add that if you import a module (via Import-Module), you can access $PsScriptRoot automatic variable inside the module -- that will tell you where the module is located.

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For what it's worth, I found that this works for me on PowerShell V5 in scripts and in PowerShell ISE:

try {
    $scriptPath = $PSScriptRoot
    if (!$scriptPath)
    {
        if ($psISE)
        {
            $scriptPath = Split-Path -Parent -Path $psISE.CurrentFile.FullPath
        } else {
            Write-Host -ForegroundColor Red "Cannot resolve script file's path"
            exit 1
        }
    }
} catch {
    Write-Host -ForegroundColor Red "Caught Exception: $($Error[0].Exception.Message)"
    exit 2
}

Write-Host "Path: $scriptPath"

HTH

P.S. Included full error handling. Adjust to your needs, accordingly.

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Here is one example:

$ScriptRoot = ($ScriptRoot, "$PSScriptRoot" -ne $null)[0]
import-module $ScriptRoot\modules\sql-provider.psm1
Import-Module $ScriptRoot\modules\AD-lib.psm1 -Force