发现了一些好玩的东西

Github raylee/tldr -- 专注于给出例子的manual手册

#tldr script
script

Make a typescript file of a terminal session.

- Start recording in file named "typescript":
  script

- Stop recording:
  exit

- Start recording in a given file:
  script logfile.log

- Append to an existing file:
  script -a logfile.log

- Execute quietly without start and done messages:
  script -q logfile.log


#tldr pv
pv

Monitor the progress of data through a pipe.

- Print the contents of the file and display a progress bar:
  pv file

- Measure the speed and amount of data flow between pipes (`-s` is optional):
  command1 | pv -s 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 -S maximum_file_size_to_be_read

script 命令 -- terminal 录频，在 特殊场景下结合一些编解码和管道控制手段，会有非常实用的功能 😯