add command
add command

dmlc/rabit,bssrdf/rabit,dmlc/xgboost,dmlc/xgboost,bssrdf/rabit,dmlc/xgboost,dmlc/xgboost,bssrdf/rabit,dmlc/rabit,dmlc/rabit,dmlc/xgboost,dmlc/xgboost,bssrdf/rabit,dmlc/rabit,bssrdf/rabit