Powershell Script to get all security groups and its members

I am looking for the powershell script to get all security groups and its members and then, export it to csv with two columns - groups and members. I want to have this script so that I can use another script to compare the groups and members in one domain with groups and members from another domain in another forest.
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Will SzymkowskiSenior Solution ArchitectCommented:
Try this...
import-module activedirectory
$SecGroups = get-adgroup -filter * -properties name
ForEach ($Group in $SecGroups) {
Get-ADGroupMember -Identity $Group | 
ft $Group.name, Name |
Out-File "c:\Groups-Members.csv" -append

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sAMAccountNameSr. Systems EngineerCommented:
That wont work on a large directory.  The query will end up hitting the timeout and only returning a partial data set.  A more elegant way of searching your directory using powershell is to use  Directory Searcher.  Its also more efficient and wont choke on large datasets
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