#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/wait.h>

void commands(char *s)
{
    int status;
    char *argv[2];
    pid_t childpid;

    argv[0] = s;
    argv[1] = NULL;
    printf("%s", argv[0]);
    childpid = fork();
    if (childpid < 0)
    {
        exit (-1);
    }
    else if (childpid == 0)
    {
        printf("%s", argv[0]);
        if (execve(argv[0], argv, NULL) == -1)
        {
            exit (-1);
        }
    }
    else
    {
        wait(&status);
    }
}

int main()
{
    char *buffer;
    size_t bufsize = 32;
    char cwd[1024];
    char *token;

    printf("\033[1;1H\033[2J");
    while (EOF)
    {
        getcwd(cwd, sizeof(cwd));

        buffer = malloc(bufsize * sizeof(char));
        if (buffer == NULL)
        {
            perror("Unable to allocate buffer");
            exit(-1);
        }

        printf("%s -> $ ", cwd);
        if ((getline(&buffer, &bufsize, stdin)) != -1)
        {
            token = strtok(buffer, " ");
            while (token != NULL)
            {
                commands(token);
                token = strtok(NULL, " ");
            }
            free(buffer);
        }
        else
        {
            free(buffer);
            exit (-1);
        }
    }
    free(buffer);
    return (0);
}