Group management in PowerShell - Mini Project: Build & Apply

Group management

📖 Scenario: You are managing user groups on a system. You want to organize users into groups and then list the members of groups that have more than a certain number of users.

🎯 Goal: Create a PowerShell script that defines groups with users, sets a minimum member count, filters groups by that count, and displays the filtered groups.

📋 What You'll Learn

Create a hashtable called groups with exact group names and user lists

Create a variable called minCount with the value 3

Use a foreach loop with variables groupName and userList to iterate over groups.GetEnumerator()

Inside the loop, use an if statement to check if userList.Count is greater than or equal to minCount

Create a new hashtable called filteredGroups to store groups meeting the condition

Print the filteredGroups hashtable at the end

💡 Why This Matters

🌍 Real World

System administrators often manage user groups to control access and permissions. Filtering groups by size helps in auditing and reporting.

💼 Career

Knowing how to script group management tasks in PowerShell is valuable for IT support, system administration, and automation roles.

1

Create the groups hashtable

Create a hashtable called groups with these exact entries: 'Admins' with users 'Alice', 'Bob', 'Charlie'; 'Editors' with users 'Dave', 'Eve'; and 'Viewers' with users 'Frank', 'Grace', 'Heidi', 'Ivan'.

PowerShell

# Create the groups hashtable with exact group names and user lists
# Your code here

Need a hint?

Use @{} to create a hashtable and @() to create arrays of users.

2

Set the minimum member count

Create a variable called minCount and set it to 3.

PowerShell

$groups = @{
    'Admins' = @('Alice', 'Bob', 'Charlie')
    'Editors' = @('Dave', 'Eve')
    'Viewers' = @('Frank', 'Grace', 'Heidi', 'Ivan')
}
# Set the minimum member count to 3
# Your code here

Need a hint?

Just assign the number 3 to the variable minCount.

3

Filter groups by minimum member count

Create an empty hashtable called filteredGroups. Use a foreach loop with variables groupName and userList to iterate over $groups.GetEnumerator(). Inside the loop, use an if statement to check if userList.Count is greater than or equal to minCount. If yes, add the group to filteredGroups with groupName as key and userList as value.

PowerShell

$groups = @{
    'Admins' = @('Alice', 'Bob', 'Charlie')
    'Editors' = @('Dave', 'Eve')
    'Viewers' = @('Frank', 'Grace', 'Heidi', 'Ivan')
}

$minCount = 3

# Create filteredGroups hashtable and filter groups
# Your code here

Need a hint?

Use GetEnumerator() to loop through hashtable keys and values, then check count and add to filteredGroups.

4

Display the filtered groups

Print the filteredGroups hashtable using Write-Output.

PowerShell

$groups = @{
    'Admins' = @('Alice', 'Bob', 'Charlie')
    'Editors' = @('Dave', 'Eve')
    'Viewers' = @('Frank', 'Grace', 'Heidi', 'Ivan')
}

$minCount = 3

$filteredGroups = @{}
foreach ($group in $groups.GetEnumerator()) {
    $groupName = $group.Key
    $userList = $group.Value
    if ($userList.Count -ge $minCount) {
        $filteredGroups[$groupName] = $userList
    }
}

# Print the filteredGroups hashtable
# Your code here

Need a hint?

Use Write-Output to display the hashtable. Only groups with 3 or more users appear.