Vise indholdet af en fil

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, char *argv[])
{
  FILE *fp;
  char fnm[256],line[256];
  printf("Enter filename: ");
  fgets(fnm,sizeof(fnm),stdin);
  fnm[strlen(fnm)-1] = '\0';
  fp = fopen(fnm,"r");
  while(fgets(line,sizeof(line),fp))
  {
    if(line[strlen(line)-1] == '\n') line[strlen(line)-1] = '\0';
    puts(line);
  }   
  fclose(fp);
  system("PAUSE");   
  return 0;
}

Tak

Eller:
#include <stdio.h>

int main(int argc, char *argv[])
{
    FILE *file;

    if(argc != 2)
    {
    printf("usage: printer.exe input.txt\n");
    return -1;
    }

    file = fopen(argv[1], "r");
    if(file == NULL)
    {
    printf("error opening file\n");
    return -1;
    }

    while(!feof(file))
    {
    putc(fgetc(file), stdout);
    }
    fclose(file);

    return 0;
}

og et svar fra mig