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SYNOPSIS

 $0 -r range [--sudo sudoer ] [--verbose] cmd ..

     [--user username (default `id -un`)]
     [--timeout seconds (default 60)] 
     [--max number ( default 128 )]
     [--port number ( default from .config )]
     [--env "A=123;B=abc" ]
     [--version]
     [--secret "x=1;xx=2" ]