$clients = @("192.168.1.249")

foreach ($client in $clients) {
    $sshSession = New-SSHSession -ComputerName $client -Credential $cred
    Invoke-SSHCommand -SessionId $sshSession.SessionId -Command "sudo useradd -m -s /bin/bash username"
}
$groupName = "neue_gruppe"

foreach ($client in $clients) {
    $sshSession = New-SSHSession -ComputerName $client -Credential $cred
    Invoke-SSHCommand -SessionId $sshSession.SessionId -Command "sudo groupadd $groupName"
    Invoke-SSHCommand -SessionId $sshSession.SessionId -Command "sudo usermod -aG $groupName username"
}
$password = "Passwort123!"

foreach ($client in $clients) {
    $sshSession = New-SSHSession -ComputerName $client -Credential $cred
    $securePassword = ConvertTo-SecureString -String $password -AsPlainText -Force
    $credential = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList "username", $securePassword
    Invoke-SSHCommand -SessionId $sshSession.SessionId -Command "echo 'username:$password' | sudo chpasswd"
}