5 int (*command
)(char **);
9 int cd_cmd(char **argv
);
10 int exit_cmd(char **argv
);
11 int help_cmd(char **argv
);
12 int kill_cmd(char **argv
);
13 int source_cmd(char **argv
);
14 int status_cmd(char **argv
);
15 int true_cmd(char **argv
);