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Get File ACL details using PowerShell

The Get-Acl cmdlet in PowerShell is used for retrieving the Access Control List (ACL) of a file system object, such as files and directories, or a registry key. This cmdlet comes in handy for administrators to manage security settings on their systems.

What is Get-Acl in PowerShell?

Get-Acl stands for "Get Access Control List". It retrieves the security descriptor of a specified resource, including information about its access rights, owner, and access control entries (ACEs). This is crucial for security and compliance checks in an IT environment.

Using Get-Acl

Retrieving ACL of a File

Get-Acl -Path C:\Example.txt

This command returns the ACL of the file 'Example.txt'.

Retrieving ACL of a Directory

Get-Acl -Path C:\ExampleFolder

Here, the ACL for 'ExampleFolder' is retrieved, showing all security settings and permissions.

Exporting ACL Information to a File

Get-Acl -Path C:\Example.txt | Export-Csv -Path C:\ACL_Report.csv

This script retrieves the ACL for 'Example.txt' and exports the details to a CSV file for further analysis or reporting.

Frequently Asked Questions

Can Get-Acl retrieve ACLs from remote computers?

Get-Acl can be used in conjunction with PowerShell remoting to retrieve ACLs from remote systems.

How can I filter specific types of permissions with Get-Acl?

After retrieving an ACL, you can pipe the output to other cmdlets like Where-Object to filter specific permissions or users.

Is it possible to compare ACLs of two different objects?

You can use Get-Acl to retrieve ACLs of two objects and then compare them using PowerShell comparison operators or scripts.

Can Get-Acl handle inherited permissions?

Yes, Get-Acl shows both explicit and inherited permissions for an object.

How do I modify permissions after using Get-Acl?

To modify permissions, you can use Get-Acl in conjunction with Set-Acl. First, retrieve the ACL, modify it as needed, and then apply it back to the object with Set-Acl.

Categories: PowerShell Windows
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