I try this way and good fail many time. Any help, will be celebrate with grate appreciation. Thanks. I also try fgets() same way but didn't work as well. int line_count () {     FILE * fp;         // file open from here.     int i=0;     int c;     if ((fp = fopen ("file.txt", "a")) != NULL){         while ((c=fgetc(fp))!=EOF)         {             if (c=='\n') {                 i++;             }                     }         fclose(fp);     }     else printf(" Error.\n");     return i; } Last edited: 25-Oct-13 04:52 PM Last edited: 25-Oct-13 04:54 PM