In Weka when classifying test data with a model, getting the Illegal options exception -

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when running weka classifier on new test data, model created earlier, i'm getting vague illegal options exception, 

java -cp ~/weka/weka.jar weka.classifiers.meta.adaboostm1    \ > -t dataset.2015-06-16t192725.test.arff  \ > -l dataset.2015-06-16t192725.train.model   weka exception: illegal options:     general options:  -h or -help ....

i realized command, , many others, order of arguments in weka matters.

when changed command below, result good,

java -cp ~/weka/weka.jar weka.classifiers.meta.adaboostm1    \ > -l dataset.2015-06-16t192725.train.model \ > -t dataset.2015-06-16t192725.test.arff

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