$Password = "Password"
$User = "UserName"
$ComputerName = "Destination"
$Command = "SSH Command"
$secpasswd = ConvertTo-SecureString $Password -AsPlainText -Force
$Credentials = New-Object System.Management.Automation.PSCredential($User, $secpasswd)
$SessionID = New-SSHSession -ComputerName $ComputerName -Credential $Credentials #Connect Over SSH
Invoke-SSHCommand -Index $sessionid.sessionid -Command $Command # Invoke Command Over SSH