GetSmoWorkingOnLinux.ps1

cls

Set-Location "/home/<whatisyourlinuxuser>/sqltoolservice/"

$Assem = (
"Microsoft.SqlServer.Management.Sdk.Sfc",
"Microsoft.SqlServer.Smo",
"Microsoft.SqlServer.ConnectionInfo"
);

Add-Type -AssemblyName $Assem 

Function Connect-SqlConnection {
    [CmdletBinding()]
    param
    (
        $instance,
        $uname,
        $pword
    )
    $sqlConnection = new-object Microsoft.SqlServer.Management.Common.SqlConnectionInfo($instance, $uname, $pword)       
    try {
        $SqlSvr = New-Object Microsoft.SqlServer.Management.Smo.Server($SqlConnection)
        return $SqlSvr
    }
    catch {
        throw $_.Exception.InnerException.ToString()
    }
}

$thisInstance = "localhost"
$thisUname = "sa"
$thisPword = "<WhatIsYourPassword>"

$thisSqlConn = Connect-SqlConnection -Instance $ThisInstance -Uname $thisUName -Pword $thisPword

foreach ($db in $thisSqlConn.Databases)
{
    Write-Verbose $db.Name -Verbose

}