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28 lines
961 B
Markdown
28 lines
961 B
Markdown
# pv
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> Monitor the progress of data through a pipe.
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> More information: <https://manned.org/pv>.
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- Print the contents of the file and display a progress bar:
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`pv {{path/to/file}}`
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- Measure the speed and amount of data flow between pipes (`--size` is optional):
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`command1 | pv {{[-s|--size]}} {{expected_amount_of_data_for_eta}} | command2`
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- Filter a file, see both progress and amount of output data:
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`pv {{[-cN|--cursor --name]}} in {{big_text_file}} | grep {{pattern}} | pv {{[-cN|--cursor --name]}} out > {{filtered_file}}`
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- Attach to an already running process and see its file reading progress:
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`pv {{[-d|--watchfd]}} {{PID}}`
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- Read an erroneous file, skip errors as `dd conv=sync,noerror` would:
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`pv {{[-EE|--skip-errors --skip-errors]}} {{path/to/faulty_media}} > image.img`
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- Stop reading after reading specified amount of data, rate limit to 1K/s:
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`pv {{[-L|--rate-limit]}} 1K {{[-S|--stop-at-size]}} {{maximum_file_size_to_be_read}}`
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