Please use Preformatted text block for your codes, you can create this block automatically by pressing Ctrl+E:
!python /content/transformers/examples/language-modeling/run_clm.py
–model_name_or_path t5-base
–train_file /content/train.txt
–do_train
–learning_rate=1e-4
–per_device_train_batch_size=4
–output_dir /tmp/test-clm

Can you share any kind of error or unexpected output with us?