mirror of https://github.com/CrimsonTome/tldr.git
28 lines
757 B
Markdown
28 lines
757 B
Markdown
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# pv
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> Monitor the progress of data through a pipe.
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- Print the contents of the file and display a progress bar:
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`pv {{file}}`
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- Measure the speed and amount of data flow between pipes (`-s` is optional):
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`command1 | pv -s {{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 in {{big_text_file}} | grep {{pattern}} | pv -cN 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 {{PID}}`
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- Read an erroneous file, skip errors as `dd conv=sync,noerror` would:
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`pv -EE {{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 1K -S {{maximum_file_size_to_be_read}}`
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