Programming

#include <stdio.h> 
#include <stdlib.h> 
#include <unistd.h> 
#include <fcntl.h> 
#include <string.h> 
#include <sys/wait.h> 
#include <sys/types.h> 
#include <stdint.h> 
 
#define LINE_MAX     80 
 
 
int main() 
{ 
pid_t pid, pid1; 
char line[LINE_MAX]; 
char *lines[LINE_MAX]; 
char *key, *data, *starter, *ender; 
int status; 
char word[] = "cd"; 
int i, j; 
char tmp;
int count = LINE_MAX;
int count1 = tmp; 
 
 
while(1){ 
 
 
printf("3600 Shell $ "); 
fflush(stdout); 
fgets(line, LINE_MAX, stdin); 
 
 
for(i = 0; i < LINE_MAX; i++) 
{ 
    if(line[i] == '|') 
    {             
        tmp = line[i];
        for(tmp; i < line[i]; i--)
        {
            key = strtok(line, "    \n"); 
            data = strtok(NULL, "   \n");
            //printf("HI");
        }
        for(tmp; LINE_MAX > line[i]; i++)
        { 
            starter = strtok(line, "    \n"); 
            ender = strtok(NULL, "   \n");
            //printf("HI");
        } 
    }
    else         
        key = strtok(line, "    \n"); 
        data = strtok(NULL, "   \n"); 
} 
 
char *args[] = {key, data}; 
char *argv[] = {starter, ender}; 
char *directory = data; 
int pipes[4];
pipe(pipes);
pipe(pipes + 2); 
 
if ((pid = fork()) < 0) 
    {     
        perror("Fork Failed"); 
    } 
 
     if(pid == 0) 
        { 
        if(strcmp(word, line) == 0) 
            {  
                pid = 1; 
            }
                 
            if(pid1 = fork() == 0) 
            { 
                dup2(pipes[0],0);
                dup2(pipes[3],1); 
                close(pipes[0]);
                      close(pipes[1]);
                      close(pipes[2]);
                      close(pipes[3]);
                execvp(*argv, argv);     
            } 
                else    { 
                        dup2(pipes[2],0); 
                        close(pipes[0]);
                              close(pipes[1]);
                              close(pipes[2]);
                              close(pipes[3]); 
                        execvp(*args, args); 
                    } 
             
                dup2(pipes[1],1); 
                close(pipes[0]);
                      close(pipes[1]);
                      close(pipes[2]);
                      close(pipes[3]); 
                execvp(*args, args); 
                exit(1); 
        } 
     
else 
{    chdir(directory);
    close(pipes[0]);
      close(pipes[1]);
      close(pipes[2]);
      close(pipes[3]);
 
    while(wait(&status) != pid);
 
             
} 
 
}//end while 
}//end main