from meshroom.core import desc class Ls(desc.CommandLineNode): commandLine = 'ls {inputValue} > {outputValue}' inputs = [ desc.File( name='input', label='Input', description='''''', value='', uid=[0], ) ] outputs = [ desc.File( name='output', label='Output', description='''''', value=desc.Node.internalFolder + 'ls.txt', uid=[], ) ]