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


int main(int argc, char **argv)
{
        char input[256];
        char *argout[256];
        char * pch;
        int index;
        for(;;){
          printf("> ");
          fgets(input, sizeof(input),stdin);
          index=0;
          pch = strtok (input," \n ");
          while (pch != NULL){
            argout[index]=pch;
            index++;
            pch = strtok (NULL, " \n ");
          }
          argout[index]=NULL;
          if(strcmp(argout[0],"exit") == 0){
              return 0;
            }
          pid_t fpid;
          fpid=fork();
          if (fpid==0){
            execvp(argout[0],argout);
          }
          else {
            wait(NULL);
          }
        }
      }