C:\>d:
D:\>dir
...
...
D:\>cd a
D:\a>dir
...
A.TXT
...
D:\a>copy d:\a\a.txt d:\b
1 file(s) copied
D:\a>cd \b
D:\b>dir
...
A.TXT
...
D:\b>type a.txt
Welcome to learning DOS!
D:\b>ren a.txt b.txt
D:\b>dir
...
B.TXT
...
D:\b>cls
In an instant, only the top D:\b> on the screen remains
D:\b>xcopy d:\a d:\b /s
...
n file(s) copied
...
D:\b>dir
...
A.TXT
...
D:\b>attrib
A--- A.TXT
ASHR C.TXT
D:\b>attrib -s -h -r c.txt
D:\b>dir
...
A.TXT
C.TXT
...
D:\b>edit c.txt
(Enter editor, finish editing)
D:\b>type c.txt
How did I fall in love with you!
D:\b>cd\
D:\>md backkup
(Misspelled, need to delete)
D:\>rd backkup
D:\>md backup
D:\>cd backup
D:\backup>xcopy c:\document
...
n file(s) copied
...
D:\backup>time
Current time: 23:00:00
Enter new time:
D:\backup>deltree c:\*.*
All ... deleted? (Y/N)Y
Deleteing... ^C
(This is a bit too slow)
D:\backup>time
Current time: 23:50:00
Enter new time:
(It's already 50 minutes, might as well format)
D:\backup>format c: /q /s
... (Y/N)y
...
All data on drive C is gone
D:\backup>c:
C:\>dir
.
..
COMMAND.COM
C:\>attrib
---- COMMAND.COM
-SHR DRVSPACE.BIN
-SHR MSDOS.SYS
-SHR IO.SYS
Somehow somewhere I've got to choose.
No matter if it is win or lose.