dos 命令练习题

DOS commands practice    

 

On a floppy disk create a file with the filename (yourname).txt.  In this file, answer these questions by showing the necessary command.  Number the answers in the file.

 

1        What are the two common wildcards used in DOS?

2                   What is the command that will show the current directory

3                   What is the command that would show the directory of the A drive

4                   What switch can be used with DIR command to show one page at a time?

5                   How would you change from C:\WINDOWS  to  C:\  ?

6                   How would you change from C:\   to  C:\WINDOWS  ?

7                   How would you make a directory named   MYDIR  ?

8                   How would you delete  MYDIR   directory/

9                   If you were in C drive, how do you change to A drive?

10              What is the command to change the prompt to show the current date?

11              What is the command to unconditionally format a floppy?

12              How do you use the FORMAT command to make a bootable “system” disk?

13              What is the smallest readable section of a track called?

14              What is the program called that reads the operating system on bootup and contains a list of the disks key characteristics (bytes, no. of sectors, no. of heads, etc)?

15              What component is it that keeps a table of 2 byte entries that keeps track of files (clusters) on the hard drive?

16              What are the executable file name extensions and in what order do they execute on executable files?

17              What command copies the entire contents of a floppy disk to another floppy disk?

18              What command will let you send the contents of the root directory to the printer?

19              Which function key will repeat the previous command (without retyping it)?

20              What does the PATH command do?

 

Answer:

10. $D  

11./U
无条件格式化磁盘。无条件格式化删除磁盘上的所有数据，并且不能用UNFORMAT命令恢复。当使用磁盘出现读写错误时，应使用此开关。有关恢复被格式化磁盘的内容，详见UNFORMAT命令.

12. /S
把操作系统文件IO.SYS、MSDOS.SYS和COMMAND.COM从系统启动驱动器拷贝到新格式化的磁盘上。这样，就可把新格式化的磁盘作为系统盘使用。若FORMAT命令找不到操作系统文件，则会提示插入系统盘。