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Today, I would like to share with you how linux randomly selects the lines of txt files to the relevant knowledge points of the new file, with detailed content and clear logic. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

Shuf randomly extracts lines from the txt file to the new file

For example, 200 lines from train.txt are randomly selected and saved in the new file test.txt.

Shuf train.txt-n 200-o test.txt

Check out the shuf command help "shuf-- help"

Usage: shuf [option]. [file] or: shuf-e [option]. [parameter]... or: shuf-I LO-HI [option]... Write a random permutation of the input lines to standard output. If no file is specified, or if the file is "-", it is read from standard input. Required parameters apply to both length and length options. -e,-- echo treat each ARG as an input line-I,-- input-range=LO-HI treat each number LO through HI as an input line-n,-- head-count=COUNT output at most COUNT lines-o,-- output=FILE write result to FILE instead of standard output-- random-source=FILE get random bytes from FILE-r,-- repeat output lines can be repeated-z,-- zero-terminated line delimiter is NUL Not newline-- help displays this help and exits the above is all the content of the article "how does linux randomly extract lines from a txt file to a new file" Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

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