Create two buffers of length 100 bytes each, say A and B. Read 100 bytes from file to A (assuming that the file cursor points to the beginning of the file). Seek to file length n-100. Read 100 bytes from file to B. Again, seek to file length n-100. Write 100 bytes from A to … Read more
System.IO.File.Move(oldFileName, Path.ChangeExtension(oldFileName, ‘old’)); solved How can I rename .TXT files to .OLD using C#? [closed]
From http://www.cyberciti.biz/faq/linux-unix-how-to-find-and-remove-files/ find . -name “error.log” -exec rm -rf {} \; And also XARGS example from http://www.askdavetaylor.com/how_do_i_delete_all_occurances_of_a_file_in_linux.html find . -name “error.log” | xargs rm 0 solved Search files and delete them via SSH [closed]
You can read the file and then filter it. with open(“file.txt”) as f: f.readlines() lines = [x.strip() for x in f][2::5] 2 solved How to skip the first two lines of a file and read those lines that are multiple of 5 [closed]
#include <stdio.h> #include <stdlib.h> #include <string.h> typedef int Type; typedef struct vector { size_t size; size_t capacity; Type *array; } Vector; Vector *vec_make(void){ Vector *v = malloc(sizeof(*v)); if(v){ v->size = 0; v->capacity=16; v->array = malloc(v->capacity * sizeof(Type)); } return v; } void vec_free(Vector *v){ free(v->array); free(v); } void vec_add(Vector *v, Type value){ v->array[v->size++] = value; … Read more
You can create/open a new file then write in it the concatenation of your variables: $scores_file=”scores.txt”; // open the file $handle = fopen($scores_file, ‘w’) or die(‘Cannot open file: ‘.$scores_file); // create 1rst line and a line feed \n $data=”Number of guesses:”.$_SESSION[‘antal_gaet’].”\n”; // concat the 2nd line $data .= ‘Username:’.$_SESSION[‘username’]; // write to the opened file … Read more
This should do the trick: #include <stdio.h> #include <string.h> int extract_line (char* line, char* buffer, char* ctag) { char line_buffer[255] = {0}; char* tagStart; char* tagEnd; if( strlen(line) < (sizeof(line_buffer)/sizeof(char)) ) { strcpy(line_buffer,line); } else { printf(“Line size is too big.\n”); return 1; } tagStart = strstr(line_buffer,ctag); if(tagStart != NULL) { tagEnd = strstr(tagStart+1,ctag); if(tagEnd … Read more
matches = [] File.readlines(‘data.txt’).each do |line| my_line = line.chomp.split(‘, ‘).map! { |l| l.split(/\s+(?=\d+$)/) }.flatten matches << [[‘player1’, ‘scope_p1’, ‘player2’, ‘score_p2’], my_line].transpose.to_h end p matches Example Here 3 solved Ruby CSV.readline convert to hash
Thank you all very much for your input. Actually the first thing i should have checked was at fault, being the HDD, which wasn’t able to provide the needed datarate. I’m now thinking about switching to a SSD – Device. solved Slowdown when reading big file randomly with C++
Patrick, I’m not sure this is the best way to do this, it does what you want but again I’m not really sure if using 3 consecutive loops is good practice. In real world environment, your txts files may contain hundreds or thousands of entries wich will make this painful for your server to process, … Read more
To settle the matter of the path I was only served in the string that the path of all this: “/wordthatwasreplacedinthenames/” with “/wordthat usedtoreplacethe old/” in this way has changed all the folders with the old word with the new one more as I put the two slash does not change the last folder that … Read more
There is no easy way to do it. Best option will be to write a program that extracts the information from the tags and then puts it into a pandas dataframe which you can export as csv. solved Add multiple xml files together in command line
I can spot following problems: The first rewind(fp); is useless and wrong. Useless because after opening the file, the file pointer it is already at the beginning, and wrong because if the file could not be opened for some reason, fp is NULL and rewind(NULL) is undefined behaviour, most likely you’ll get a crash. The … Read more
I would look at the documentation about child process. Here is the link if you would like it: https://nodejs.org/dist/latest-v9.x/docs/api/child_process.html solved Launching a file using NodeJS
Introduction Launching a file using NodeJS is a great way to quickly and easily execute a file from within a NodeJS application. NodeJS provides a number of built-in methods and modules that make it easy to launch a file from within a NodeJS application. In this tutorial, we will discuss how to launch a file … Read more