Need to change passwords of multiple users using a text file

I have about a 100 users that I need to reset their passwords. I can set them to the same password.

How can I do this using a list of users in text file?

I found some script, but nothing really tells what needs to be change and how to do it.

thanks
rdefinoAsked:
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becraigCommented:
If you have PowerShell AD tools you can use this:

gc userlist.txt | % {
Set-ADAccountPassword -identity $_-Reset -NewPassword (ConvertTo-SecureString -AsPlainText "p@ssw0rd" -Force)
}

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http://technet.microsoft.com/en-us/library/ee617261.aspx
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rdefinoAuthor Commented:
Where is the syntax do I enter the password that I want to change to?
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becraigCommented:
import-module ac*
gc userlist.txt | % {
Set-ADAccountPassword -identity $_-Reset -NewPassword (ConvertTo-SecureString -AsPlainText "p@ssw0rd" -Force)
}
          

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This line imports the active directory module
Import-module ac*

Then we pipe it into a foreach
| % {}

Then to break down the command:
We call Set-AdAccountPassword
Then we specify the user sam account or DN etc
-identity $_ (The $_ represents the value from the text file as a part of the foreach loop)

We then use the reset flag to call a reset without inputting the old password
-reset

Then we set the new password - using conveert-to-securestring so powershell knows it is a valid password.
The password is the value as a part of the plaintext flag
-Asplaintext "password value"

Then we use force to complete this
-Force
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McKnifeCommented:
Alternatively, the most simple batch code:
for /f %%a in (c:\temp\userlist.txt) do net user %%a newpassword /domain

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