I really love adfind.exe (http://www.joeware.net/freetools/tools/adfind/index.htm) to search in AD and AD LDS, also if not all these machines part of AD or a different AD. Especially the CSV export is really powerful and so I was wondering how I can feed the adfind CSV output directly in a PowerShell array for further processing.
PS C:\System> $content= (tools\adfind -h dir.server.com:389 -b "o=mycompany" -u "username" -up "userpass" -maxe 25 -csv -csvdelim "|" -f "(objectclass=*)" cn | ConvertFrom-Csv -delimiter "|" )
So the command line above will run adfind to search for all entries on dir.server.com regardless what the object class is, but it will only return the first 25 entries. You can adjust the maxe option. I am working on mostly larger projects so I found the 25 entries limitation convenient and time saving.
Then all results will be available in the content array for further processing with PowerShell, e.g. counting, sorting, check for duplicates on specific attributes, ... ,you name it.