Q:

Azure Data Lake Analytics add Powershell API

in Azure portal is option to Resubmit existing job. 

Is it possible to do this via powershell? 
Thank you

A:

Running the following using Azure PowerShell should do what you want:
$job = Get-AdlJob -Account <accountName> -JobId <jobId>

Submit-AdlJob -Account <accountName> -Name $job. Name -Script $job. Properties. Script -DegreeOfParallelism $job. DegreeOfParallelism -Priority $job. Priority

