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One of our Windows servers that has some user folders on it has some pretty screwed up permissions. What I want it for SYSTEM and Domain Admins to have full control of all folders. I want the users to have read only on the top-level folder (which is their home folder) and modify on all subfolders and files. This can easily be accomplished through the GUI, but I can't figure out how to script it.

I'm calling icacls from my PowerShell script, because get-acl and set-acl are a major PITA. If I have to use them, I'm not opposed to it, but I imagine that calling icacls will be easier. This is the relevant code that I have to far:

icacls.exe $folder /grant '$domain\$user:(OI)(CI)(M)'
icacls.exe $folder /grant 'SYSTEM:(OI)(CI)(F)'
icacls.exe $folder /grant '$domain\domain admins:(OI)(CI)(F)'

As you can see, I'm giving modify to the user for everthing with icacls.exe $folder /grant '$domain\$user:(OI)(CI)(M)'. I can't figure out how to make that Modify apply only to subfolders and files while granting read-only to the top level folder.

The desired permission structure would look like this (just for clarity):

-Users  
--M  
---Marra (read only to me)  
----Documents (Modify)  
----Scripts(Modify)  
----Etc (Modify)  

What is the right icacls syntax for this, or how can I do it natively in PS with set-acl?

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1 Answer 1

up vote 2 down vote accepted

Change the first line of your script to the following to have it apply only to subfolders and files.

icacls.exe $folder /grant '$domain\$user:(OI)(CI)(IO)(M)'

Then apply this to the top folder.

icacls.exe $folder /grant '$domain\$user:(R)'
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1  
That's accurate to answer my question, but I need the users to be able to create files and sub-folders. To do that, I needed to use (R,WD,AD) for the top-level. –  MDMarra May 9 '12 at 17:50

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