input: [1] Whether output and error files should be appended to or overwritten. Defaults to false. [2] No [0] 
output: append
options: A t t r i b u t e
options: o u t p u t
options: e r r o r
options: l o g E r r o r
options: a p p e n d
options: c r e a t e e m p t y f i l e s
options: o u t p u t p r o p e r t y
options: e r r o r p r o p e r t y