Command Misunderstood

[mahjabeen-sust]

I am sorry, it must be obvious for you all. But I'm new at this and can't understand/execute the knmt commands. To prepare the data, your command is:
knmt make_data train.src train.tgt data_prefix --dev_src valid.src --dev_tgt valid.tgt --src_voc_size 100000 --tgt_voc_size 30000

my files' extensions are en and bn

should I replace train.src as train.en and train.tgt as train.bn? I did that, but it says, (after showing some other errors): "No such file or directory"

Also, what should I write in the place of data_prefix?

Please help me out with an actual command with actual file names.