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

void arg_print(int argc, char *argv[]) {
    int i = 0;
    int j = 0;
    for (i = 0; i < argc; i ++) {
        j = 0;
        while(argv[i][j] != '\0')
            printf("%c", argv[i][j++]);
        printf(" ");
    }
    printf("\n");
}


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

    arg_print(argc, argv);

   int count;
    char **copy = malloc(sizeof(char *) * (argc-1));
    for ( count = 0; count < argc - 1; count++ ) {
        copy[count] = strdup(argv[count + 1]);
    }

    arg_print(argc - 1, copy);

    copy[0][0] = '@';
    argv[0][0] = '@';

    arg_print(argc - 1, copy);

    if (-1 == execvp(argv[1], copy)) {
        perror("child process execve failed [%m]");
        return -1;
    }
}