Excute Shell Script remotely to Azure Linux VM - powershell

Question

i'am trying to excute a shell script to an azure linux virtual machine using powershell
Why I'm i using powershell? :
The virtual machine has a Copied VHD from storage account which means it doesn't have Azure VM agent
so i can't use :
azure vm extentions
azure vm Runs
i tried also using an automation runbook with the ssh module and got those errors :
Exception calling "Connect" with "0" argument(s): "Server HMAC algorithm not found" At C:\Modules\User\SSH\SSH.psm1:68 char:5 + $SSHConnection.Connect() + ~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : SshConnectionException
and
Exception calling "RunCommand" with "1" argument(s): "Client not connected." At C:\Modules\User\SSH\SSH.psm1:69 char:5 + $ResultObject = $SSHConnection.RunCommand($ScriptBlock.ToString() ... + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : SshConnectionException
which is based on my understanding caused by the vm that is missing KexAlgorithms to describe which methods are supported by the SSH daemon
What i'm trying to do now is to ssh into the vm and excute the command using powershell
here is what i got now (a Powershell scripot to ssh into the vm and excute a command):
$Password = "pwd"
$User = "pwd"
$ComputerName = "ip adress"
$Command = "touch tst.txt"
$secpasswd = ConvertTo-SecureString $Password -AsPlainText -Force
$Credentials = New-Object System.Management.Automation.PSCredential($User, $secpasswd)
echo 'logging...'
$SessionID = New-SSHSession -ComputerName $ComputerName -Credential $Credentials #Connect Over SSH
echo 'Executing...'
$output = (Invoke-SSHCommand -Index $SessionID -Command $Command).Output
Remove-SSHSession -Name $SessionID | Out-Null
im getting this error :
Invoke-SshCommand : A parameter cannot be found that matches parameter name 'Index'.
At C:\Users\octoadmin\Desktop\sign in.ps1:11 char:30
+ $output = (Invoke-SSHCommand -Index $SessionID -Command $Command).Out ...
+ ~~~~~~
+ CategoryInfo : InvalidArgument: (:) [Invoke-SshCommand], ParameterBindingException
+ FullyQualifiedErrorId : NamedParameterNotFound,Invoke-SshCommand
i looked in the internet but couldn't find anything.
apparently the ssh invoke command can't find a session with the index $SessionID
but i don't know where exactly is the problem
hope someone can guide me to the right direction.

Answer 1

Updating Posh-SSH worked for me with this code :
to install Posh-SSH :
Install-Module -Name Posh-SSH -RequiredVersion 2.1
The Script:
$Command = "fetch $scripturl; sh script.sh"
$secpasswd = ConvertTo-SecureString $Password -AsPlainText -Force
$Credentials = New-Object System.Management.Automation.PSCredential($User, $secpasswd)
$ComputerName = Get-AzPublicIpAddress -ResourceGroupName $RG -Name $IPName | Select-Object -ExpandProperty ipAddress
echo 'ip is : '
echo $ComputerName
echo 'logging...'
$SessionID = New-SSHSession -ComputerName $ComputerName -AcceptKey -Credential $Credentials
echo 'Exucuting...'
$Query = (Invoke-SshCommand -SSHSession $SessionID -Command $Command).Output
echo $Query
Remove-SSHSession -Name $SessionID | Out-Null