If you have difficulties to generate permission for all folders, sub folders from all document libraries within the site, don't worry. I have done one development for it.
Please download the following web part and install into your sharepoint server.
http://www.sendspace.com/file/chtemc
Detail Instruction:
STEP 1 : Download wsp file from the above link:
STEP 2 : Run SharePoint PowerShell Management with administrator account in sharepoint web server
STEP 3 : Type as below to add solution:
Add-SPSolution “D:\Deploy\PermissionReport.wsp“
STEP 4 : Type as below to install solution:
Install-SPSolution –Identity PermissionReport.wsp –WebApplication <http://yourwebapplink> –GACDeployment
STEP 5 : Then Go to your sharepoint site. Then Add this webpart to your web page.
Finally, you are able to see the permission report for all folders in all document libraries in your site.
