我有一个包含许多日志文件^H和^M字符，如产生这个文件更新了基于文本的进度栏的过程。
使用时cat，输出会被评估并显示为人类可读和简洁。下面是一个示例输出。
Epoch 11/120
4355/4355 [==============================] - ETA: 0s - loss: 0.0096
Epoch 00011: val_loss did not improve from 0.00992
4355/4355 [==============================] - 1220s 280ms/step - loss: 0.0096 - val_loss: 0.0100
但是，与上面的实际打印文本cat所建议的（70MB 大约 900 行）文本相比，文件本身是巨大的。
下面是日志文件中包含的实际文本的片段。
1/Unknown - 0s 81us/step - loss: 0.5337^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^M 2/Unknown - 1s 438ms/step - loss: 0.5299^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^
H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^M 3/Unknown - 1s 386ms/step - loss: 0.5286^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^M 4/Unknown - 1s 357ms/step - loss: 0.5289^H^H^H^H^H^H^H^H^H^
H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^H^M 5/Unknown - 2s 339ms/step - loss: …