Shuffle lines in a file
WebNov 23, 2024 · The output file (after shuffle): line 10 line 20 line 30 line 1 line 2 line 100 line 200 Of course, running repeatedly should give different order of blocks. The first line of the file is always non-empty. There are no double blank lines. The last line of the file is always empty. I wrote a very simple Python script that reads all lines in a ... WebNov 3, 2010 · How to shuffle the lines in a text file? Posted 3-Nov-10 4:48am. ttds. Updated 3-Nov-10 11:12am CPallini. v3. Add a Solution. Comments. ... You may read the lines into …
Shuffle lines in a file
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WebSep 18, 2014 · On my machine, for a file of 1000 lines the shuf variant takes about 0.1 seconds, while the following script takes about 0.01 seconds ;) So while shuf is the easiest and shortest variant, this is faster. In all honesty I would still go for the shuf solution, unless high efficiency is an important concern. WebAug 22, 2024 · Randomly select a file position and seek to that position. Return a line near the position. Sub Q: What's wrong with AlgoRandomSeek? Sub A: Although the algorithm can return any line in the file, it returns longer lines with higher probability than shorter lines and, thus, does not select lines via a uniform distribution.
WebDec 4, 2024 · 2. You first need to read your file and it can be done as follows: List result; try (Stream stream = Files.lines (Paths.get ("WildPkmn.txt"))) { result = … Web1. To get a single random block of adjacent lines, use shuf to get one random line, then use grep to get the block of lines after the randomly selected line. $ shuf -n 1 file grep -f - -A …
WebJun 16, 2024 · sort this file: sort tmp_string_data.txt > sorted_tmp_string_data.txt. remove the random data: cut -f2- sorted_tmp_string_data.txt > random_string_data.txt. This is the basic idea. I tried it and it does work, but I don't have 16 million lines of text or 16 million lines of random numbers. You may want to pipeline some of those steps instead of ... WebJun 1, 2016 · The shuffle function is redundant. Instead of assigning a search mode while parsing the arguments, assign a shuffle function: shuffle = random.shuffle # ... if '-k' in opts: shuffle = shuffle_kfy elif '-s' in opts: shuffle = shuffle_sattolo. Having code at the top level of a module makes it hard to test — for example, you can't test the ...
WebThis tool rearranges the order of lines in the given textual data. It uses the Knuth method to do it, aka the Fisher and Yates order permutation algorithm. The behavior of the algorithm …
WebJul 29, 2010 · This implies that line i of the new file is now line p[i] in the original file (i.e. in the above example, the 1st line of the new file is the 3rd line of the original file). Main. Create a new file. Write the first line in the new file by reading the text in the original file … share market in india how to investWebJul 18, 2005 · beginning of each line into an index file. Then you can generate a random number from 1 to Whatever, go get that index from the index file, then open your text file, seek to that position in the file, read one line, and close the file. Using this process you can then extract a somewhat random set of lines from your 'corpus' text file. share market investment in usWebShuf is a Linux and Unix command-line utility that puts its input text in random order to generate output consisting of random permutations of the input. In simple terms, it just shuffles the ... share market india todayWebNov 3, 2010 · How to shuffle the lines in a text file? Posted 3-Nov-10 4:48am. ttds. Updated 3-Nov-10 11:12am CPallini. v3. Add a Solution. Comments. ... You may read the lines into an array of strings and then shuffle the array indices (and finally write back the array into a … poorly planned design implicationsWebJun 27, 2024 · If you have a text file and you want to shuffle the lines in the file randomly, you can do that using Sublime Text Editor in the following way, Open the file in Sublime Text tab, Goto Menu: Edit -> Permute Lines -> Shuffle, You should see the lines in the file are suffeled! Example: Initial file text. Line 1 Line 2 Line 3 Line 4 Line 5. poorly planned lessonWebJul 18, 2005 · beginning of each line into an index file. Then you can generate a random number from 1 to Whatever, go get that index from the index file, then open your text file, … share market investment app indiaWebMar 1, 2014 · Simply go to: Edit -> Line Operations -> Reverse Line Order. Note that it will reverse the order of selected lines, or reverse all lines in the file if nothing is selected. For older versions of Notepad++, the previous strategy can still be used. This can also be done in Notepad++ without the TextFX plugin. poorly planned lesson plan