Script to create Sql jobs / query them and steps

SQLJob.ps1

#http://sqlblog.com/blogs/allen_white/archive/2008/01/09/create-agent-jobs-to-run-powershell-scripts.aspx
#https://msdn.microsoft.com/en-us/library/ms162162.aspx
#Requires -Version 3.0 
function Get-SqlJobs
{
  param([string]$sqlServer, [string]$sqlinstance = $null)
  $s = New-SqlServerConnection -sqlServer $sqlServer -sqlinstance $sqlinstance  
  $jobs = $s.JobServer.Jobs
  $jobs
}

function get-SqlJob
{
    param
    ([object]$jobs,
     [string]$job
    )
    
    $j = ($jobs | ?{$_.name -like $job})

    $j
}

function New-SqlServerConnection
{
  param([string]$sqlServer, [string]$sqlinstance = $null)
  
  [System.Reflection.Assembly]::LoadWithPartialName('Microsoft.SqlServer.SMO') | out-null
  $s = new-object ('Microsoft.SqlServer.Management.Smo.Server') "$sqlServer\$sqlinstance"
  $s
}

function New-SQLJob
{
  param([Microsoft.SqlServer.Management.Smo.Server]$Serverconnection,
        [string]$JobName = 'Job1',
        [string]$Description = 'Job1 My Job Name',
        [string]$Category ,#= '[Uncategorized (Local)]',
        [string]$OwnerLoginName = 'sa')
  $j = New-Object ('Microsoft.SqlServer.Management.Smo.Agent.Job') ($Serverconnection.JobServer,$JobName)
  $j.description = $Description
  $j.category = $Category
  $j.OwnerLoginName = $OwnerLoginName
  
  $j.create()
 
}

function Test-SQLJobStep
{

}

function New-SQLJobStep
{
# New-SQLJobStep -job (get-SqlJob -jobs $jobs -job 'test') -JobStepName 'test2' -Subsystem 'CmdExec' -command 'Powershell "test $(get-date)" | Out-File -FilePath c:\temp\test.txt -Append' -OnSuccessAction QuitWithSuccess -OnFailAction QuitWithSuccess
  param
  ([Microsoft.SqlServer.Management.Smo.Agent.Job]$job,
   [string]$JobStepName,
   [Microsoft.SqlServer.Management.Smo.Agent.AgentSubSystem]$Subsystem ,
   [string]$command = 'powershell "& C:\Admin\backupdb.ps1"',
   [Microsoft.SqlServer.Management.Smo.Agent.StepCompletionAction]$OnSuccessAction  ,
   [Microsoft.SqlServer.Management.Smo.Agent.StepCompletionAction]$OnFailAction    
  )
  #$jobStep =  New-Object ('Microsoft.SqlServer.Management.Smo.Agent.JobStep') ($Serverconnection.JobServer,$JobStepName)
  $jobStep =  New-Object 'Microsoft.SqlServer.Management.Smo.Agent.JobStep' ($job,$JobStepName)
  $jobStep.Subsystem = $Subsystem
  $JobStep.command = $command
  $jobstep.OnSuccessAction = $OnSuccessAction
  $jobstep.OnFailAction = $OnFailAction
  $jobstep.create()
  #this job.originating server is the property on which you are changing the job if it is diffrent than a case other than originating server will need to account for it.

  $job.ApplyToTargetServer($job.originatingserver)
  $job.Alter()

}

function Get-SQLJobSteps
{
    #-job (get-SqlJobGuid -jobs $jobs -job 'test')
    param
    (
       [Microsoft.SqlServer.Management.Smo.Agent.Job]$job 
    )
    $jobSteps = $job.JobSteps
    $jobSteps
}

function Alter-SQLJobStep
{
    param
    (
       [Microsoft.SqlServer.Management.Smo.Agent.Job]$job,
       [int32]$StartStepId
    )
    $job.StartStepID = $StartStepId
    $job.Alter()
}

$serverconnection = New-SqlServerConnection -sqlServer . 
#$jobs = get-sqlJobs -sqlServer .
#$job = get-SqlJob -jobs $jobs -job 'test'
#$jobSteps = Get-SQLJobSteps -job $job
#Alter-SQLJobStep -job $job -StartStepId 3
#New-SQLJobStep -job (get-SqlJob -jobs (get-sqljobs -sqlserver .) -job 'test3') -JobStepName 'step3' -Subsystem 'CmdExec' -command 'Powershell "test $(get-date)" | Out-File -FilePath c:\temp\test.txt -Append' -OnSuccessAction QuitWithSuccess -OnFailAction QuitWithSuccess

thank you for your feedback Mike. appreciate it.