public class help extends VMachine
{
    
    
    public help()
    {
    }
    
    public void run()
    {
        
        try
        {
            
            sysapi.Write(OUT,"-List of Available System Commands-\n\n");
            
            sysapi.Write(OUT,"<exit> terminates current shell.\n");
            sysapi.Write(OUT,"<login> creates a new user in a new console window.\n");
            sysapi.Write(OUT,"<logout> waits for current user's programs to finish and then ends user session.\n");
            sysapi.Write(OUT,"<newusr> creates new user.\n");
            sysapi.Write(OUT,"<shell> creates a new shell as a child of current shell.\n");
            sysapi.Write(OUT,"<listproc> list's the current user's processes.\n");
            sysapi.Write(OUT,"<date> displays the system time.\n");
            sysapi.Write(OUT,"<send> sends messsages to a user.\n");
            sysapi.Write(OUT,"<recieve> retrieves messages from user mailbox.\n");
            sysapi.Write(OUT,"<transmit> sends messsages to a process.\n");
            sysapi.Write(OUT,"<retrieve> gets one message from a process message queue.\n");
            sysapi.Write(OUT,"<help> displays system commands.\n");
            
            sysapi.Write(OUT,"\n----File System Commands----\n");
            sysapi.Write(OUT,"<cat> lists specified file.\n");
            sysapi.Write(OUT,"<edit> edits specified file.\n");
            sysapi.Write(OUT,"<mkdir> creates a new directory.\n");
            sysapi.Write(OUT,"<rmdir> removes specified directory.\n");
            sysapi.Write(OUT,"<rm> removes specified file.\n");
            sysapi.Write(OUT,"<copy> copies specified file to specified filename.\n");
            sysapi.Write(OUT,"<ls> lists contents of current directory.\n");
            sysapi.Write(OUT,"<cd> changes current directory.\n");
            
            
            
            sysapi.Exit(vmh,owner);
            
        }
        catch (Exception err)
        {
            System.out.println("Sample threw an Exception.");
        }
        
        
    }
    
}