====== C File manipulation ======

===== Open file for read =====

<code c>
    FILE *file;


    file = fopen(argv[1],"r");
    if(file==NULL)
    {
        printf("Cannot open file %s!\n",argv[1]);
        return (EXIT_FAILURE);
    }

    fclose (file);
    
</code>

===== Read to end of file =====

<code c>
   while (!feof(file))
   {

      fscanf(file,"%d",&value);
      ...
   }
</code>