WebOct 3, 2014 · 2 Here is another way to do it: std::ofstream outFile ("/path/to/outfile.txt"); std::string line; std::ifstream inFile ("/path/to/infile.txt"); int count = 0; while (getline (inFile, line)) { if (count > 5 && count < 100) { outFile << line << std::endl; } count++; } outFile.close (); inFile.close (); Share Improve this answer Follow WebDec 24, 2015 · 4 Answers. Here's a way that works well from cron. Less chance of losing data or corrupting the file: # preserve first lines of results head -3 results.txt > results.TMP # append new data cat data.txt >> results.TMP # rename output file atomically in case of system crash mv results.TMP results.txt.
how to copy lines 10 to 15 of a file into another file, in unix?
WebMay 27, 2014 · Another approach with grep and cut: grep "kind=\"con\"" sample.txt cut -d \" -f 4 > sample_edited.txt This will grep all lines containing kind="con" and print the paths by setting cut 's delimiter to ". Share Improve this answer answered May 27, 2014 at 19:28 Glutanimate 2,128 4 22 38 Add a comment 4 WebThe easiest tool here might be sed.To insert b.txt into a.txt after the 5th line , you could write:. sed '5r b.txt' a.txt sed reads the file specifiied as argument (a.txt) line by line.All lines get reproduced in the output just as they appeared in the input, unless they get altered by a … nbc5i/weather
How to copy data from file to another file starting from specific line
WebJul 31, 2013 · use "+y to send the yanked text to the clipboard, and "+p to paste it into the new file. So if I have a file named A that contains abcdef and I (in visual mode) select def and then press "+y while in normal mode. I have just copied def to the system clipboard. WebI've got a head command to get the first line of a file and a sed command to insert before the first line of a file. How do I combine these so I can insert the extracted first line of one file before the first line of another file. Get first line of a file head -n 1 file_to_get_first_line_from Insert before first line WebOct 20, 2024 · source_file = open ('data1.txt', 'r') line = numbers_file.readline () destination_file = open ('data2.txt', 'w') source_file.seek (0) for line in source_file: destination_file.writelines (line) source_file.close () destination_file.close () python lines copying Share Improve this question Follow asked Oct 20, 2024 at 17:18 Michael … nbc5i news dallas fort worth newscasters