This program should extract the first line.

Somehow I'm getting the last line instead of the first...

This is the textfile:

N100 G96 S200 
N115 G0 X600 Z-1004.95 T11 D2 M3 M7 H10 
N125 G0 X500 
N130 G1 X419 F0.5 
N135 G1 Z-1004 
N140 G0 X500 
N145 G0 Z-419.7 
N150 G0 X405

Trying to get the first line and place it in a character array with this .c program :

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

int main (int argc, char *argv[])
{
  FILE *filePtr;
  int i = 0;
  char line[255];
  
  if ((filePtr=fopen(argv[1], "r")) == NULL)
  { 
    printf("Cannot open file.\n");
    return -1;
  }
  
    // get the first line
    while ( line[i] != '\0' ) {
      fgets(line, sizeof(line), filePtr);
      ++i;
    }
    
    // print it
    printf("Code: %s", line);
  // close the file at hand
  fclose (filePtr); 
  
  return 0;
}

Output: Code: N150 G0 X405 Why am I getting the last line starting with N150 instead of the N100 line?

Thanks in advance.

Okey, i'm too tired for this... remove the loop and it works.

Time to get some sleep :)

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