如何批量移除AD用户账户Description字段的指定内容？

Here's a reliable solution to update your ~1000 AD users' Description fields—removing the exact phrase "Call security before re-enabling this account" while preserving all other content like job titles. This PowerShell script reads from your CSV and handles the bulk update smoothly:

Import-Module ActiveDirectory

# Define the exact text you want to remove and a temporary replacement
$targetPhrase = 'Call security before re-enabling this account.'
$tempReplacement = ' '

# Import your CSV and process each user
Import-Csv -Path "C:\users\your-path-here.csv" | ForEach-Object {
    # Retrieve the user object with the Description property included
    $adUser = Get-ADUser $_.'User-Name' -Properties Description
    
    # Update the Description: remove the target phrase and clean up extra whitespace
    Set-ADUser $adUser -Description $adUser.Description.Replace($targetPhrase, $tempReplacement).Trim()
}

Key Details Explained: #

• Active Directory Module: The first line loads the required module for AD cmdlets—make sure this is installed on your machine (it's part of RSAT tools).
• Variable Setup: $targetPhrase is the exact text you want to eliminate. We use a space as a temporary replacement, then Trim() to wipe out any leftover extra spaces that might result from the replacement.
• CSV Processing: Import-Csv reads your user list. Ensure your CSV has a column named User-Name matching the AD usernames—adjust the column name in the script if yours is different (like SamAccountName).
• User Retrieval: Get-ADUser fetches each user object, explicitly requesting the Description property (since it's not part of the default set of properties returned).
• Description Update: The Replace() method removes the unwanted text, and Trim() ensures the final Description is clean without trailing/leading spaces.

Pro Tips: #

• Test First: Run this on a small subset of users (e.g., add a Where-Object clause to filter one user) before applying to all 1000 to verify it works as expected.
• Permissions: Ensure your account has the necessary rights to modify AD user attributes (typically "Write Description" permission on the OU containing the users).

内容的提问来源于stack exchange，提问作者griffen62