En definitiva:
#include <stdio.h>
#include <string.h>
int main (int argc, char *argv [])
{
printf ("Code 0.1 : Sagrini 2011 : elhacker.NET\n"); if (argc != 3)
{
printf ("[!!!] Use: %s <word> <number>\n\n", argv
[0]); return 1;
}
{
printf ("[!!!] Number %d is too long.\n\n", atoi (argv
[2])); return 1;
}
printf ("Leter number %d of %s: %c.\n\n", atoi (argv
[2]), argv
[1], argv
[1][atoi (argv
[2])-1]); return 0;
}
sagrini@sagrini:~/Escritorio$ gcc -o code code.c
sagrini@sagrini:~/Escritorio$ ./code
code 0.1 : Sagrini 2011 : elhacker.NET
[!!!] Use: ./code <word> <number>
sagrini@sagrini:~/Escritorio$ ./code word
code 0.1 : Sagrini 2011 : elhacker.NET
[!!!] Use: ./code <word> <number>
sagrini@sagrini:~/Escritorio$ ./code word 7
code 0.1 : Sagrini 2011 : elhacker.NET
[!!!] Number 7 is too long.
sagrini@sagrini:~/Escritorio$ ./code word 2
code 0.1 : Sagrini 2011 : elhacker.NET
Leter number 2 of word: o.
sagrini@sagrini:~/Escritorio$
Un saludo. Sagrini