diff --git a/mysh.c b/mysh.c
deleted file mode 100644
index a25c070..0000000
--- a/mysh.c
+++ /dev/null
@@ -1,103 +0,0 @@
-#define __LIBRARY__
-#include <unistd.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <stdarg.h>
-#define PATH_MAX        1024
-#define ENOEXEC		 8
-#define MAX_NUMBER_BYTES 1024
-char tmp_path[PATH_MAX+1];
-static char * envp[] = { "HOME=/usr/root", NULL, NULL };
-char ** environ;
-FILE __stdin;
-FILE __stdout;
-_syscall3(pid_t ,waitpid,pid_t ,pid,int * ,wait_stat,int, options)
-_syscall0(int,fork)
-_syscall0(int,pause)
-_syscall0(int,sync)
-_syscall1(int,chdir,const char *, filename)
-_syscall3(int,write,int ,fd,const char *, buf, off_t ,count)
-_syscall3(int, execve,const char *, filename, char **, argv, char ** ,envp)
-_syscall2(int, getcwd,char *, buf, size_t, size)
-_syscall2(int ,access,const char *, filename, mode_t ,mode)
-_syscall3(int,read,int ,fildes,char *, buf, off_t ,count)
-_syscall2(int, stat,const char * ,filename, struct stat *, stat_buf)
-
-
-
-int printf(const char *fmt,...)
-{
-	write(2,fmt,strlen(fmt));
-}
-
-pid_t wait(int * wait_stat)
-{
-	return waitpid(-1,wait_stat,0);
-}
-
-
-
-
-
-void main(int argc, char *argv[])
-{
-	int pid;
-	int status;
-	char dirname[80];
-	char cmdstr[255];
-	int argc_cmd;
-	char *argv_cmd[10];
-	char *p;
-	char a[50];
-
-	while(1)
-	{
-	
-	memset(cmdstr, 0, 255);
-	read(0,cmdstr, strlen(cmdstr));
-	argc_cmd = 0;
-	p = strtok(cmdstr, " \n\t");
-	while (p && argc_cmd < 9){
-		argv_cmd[argc_cmd] = p;
-		p = strtok(NULL, " \n\t");
-		argc_cmd++;
-	}
-	argv_cmd[argc_cmd] = NULL;
-	if (argc_cmd == 0)
-		continue;
-	if (strcmp(argv_cmd[0], "exit") == 0)
-		break;
-	if (strcmp(argv_cmd[0], "sync") == 0){
-		sync();
-		continue;
-	}
-	if (strcmp(argv_cmd[0], "cd") == 0){
-		if ((argc_cmd == 1) || (strcmp(argv_cmd[1], "~") == 0))
-		argv_cmd[1] = "/";
-		if (chdir(argv_cmd[1]) < 0)
-		printf("cd error\n");
-		continue;
-	}
-
-	if (!(pid = fork()))
-	{
-		strcpy(a,"/usr/bin/");
-		strcat(a,argv_cmd[0]);
-		if (execve(a, argv_cmd,envp) == -1)
-		printf("execve error\n");
-		exit(1);
-	}
-	while (1)
-		if (pid == wait(&status))
-		break;
-	
-	}
-	exit(0);
-	
-
-	
-}
-