pv

Monitor the progress of data through a pipe. More information: https://manned.org/pv.

• Print the contents of the file and display a progress bar:
  pv {{path/to/file}}
• Measure the speed and amount of data flow between pipes (--size is optional):
  command1 | pv --size {{expected_amount_of_data_for_eta}} | command2
• Filter a file, see both progress and amount of output data:
  pv -cN in {{big_text_file}} | grep {{pattern}} | pv -cN out > {{filtered_file}}
• Attach to an already running process and see its file reading progress:
  pv -d {{PID}}
• Read an erroneous file, skip errors as dd conv=sync,noerror would:
  pv -EE {{path/to/faulty_media}} > image.img
• Stop reading after reading specified amount of data, rate limit to 1K/s:
  pv -L 1K --stop-at --size {{maximum_file_size_to_be_read}}