public HelpCmd(SimpleShell shell) : base("help", shell) { }
public LsCmd(SimpleShell shell) : base("ls", shell) { }
public MkFileCmd(SimpleShell shell) : base("mkfile", shell) { }
public CdCmd(SimpleShell shell) : base("cd", shell) { }
public Cmd(string name, SimpleShell shell) { this.name = name; this.shell = shell; }
public CatCmd(SimpleShell shell) : base("cat", shell) { }
public PwdCmd(SimpleShell shell) : base("pwd", shell) { }
public ExitCmd(SimpleShell shell) : base("exit", shell) { }