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The time now is 2026-08-12 06:27
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DOS学习入门 & 精彩文章 (教学室) » Another usage of copy
Printable Version  7,823 / 29
Floor1 zmycgh Posted 2009-07-07 10:59
初级用户 Posts 13 Credits 31
Everyone knows that "copy" means copy. Recently, I found another usage of copy in learning DOS. That is to merge a text file into another non-text file to achieve the role of hiding. For example, if there is a text document on the local disk, it can be merged into, for example, an image, MP3 and other executable files. The syntax is the same. Friends who are interested can give it a try! I will upload my screenshot later!
Floor2 yunluo Posted 2009-07-08 00:58
新手上路 Posts 2 Credits 5
Hurry up and send the screenshot.
Floor3 a7147125 Posted 2009-07-08 05:39
新手上路 Posts 10 Credits 19
Just try it yourself...
Floor4 rootkit Posted 2009-07-10 05:25
初级用户 Posts 32 Credits 63
I've known that for a long time. It's just the file extension! The syntax for merging files.
Floor5 freeDOS Posted 2009-07-31 05:58
新手上路 Posts 8 Credits 16
This is still practical for beginners, but the file will become larger, and careful people will still find something wrong.

The command is like this. Below is to hide 1.rar in 2.jpg.

copy/b 2.jpg + 1.rar 1.jpg
Floor6 huagaorang Posted 2009-08-06 03:45
新手上路 Posts 5 Credits 10
copy/b 2.jpg + 1.rar 1.jpg
Now I understand why the merged file didn't display the image before. It turned out that the /b parameter was missing.
Floor7 huagaorang Posted 2009-08-06 03:47
新手上路 Posts 5 Credits 10
I want to ask. How can I separate these two merged files?
Floor8 fuwenpan Posted 2009-08-09 01:12
新手上路 Posts 1 Credits 2
Study!
Floor9 wan15305898615 Posted 2009-09-04 11:00
初级用户 Posts 10 Credits 20
Floor10 chenzuoxz Posted 2009-09-13 00:54
新手上路 Posts 6 Credits 12
Can they be separated after merging? How to separate them
Floor11 SinLow Posted 2009-09-16 12:54
初级用户 Posts 33 Credits 70
I've known that for a long time. It's just the file extension! The syntax for merging files.
Floor12 yangjunxx Posted 2009-11-16 18:28
新手上路 Posts 5 Credits 7
Floor13 ligui0001 Posted 2009-11-17 12:05
初级用户 Posts 41 Credits 58
Floor14 azone123 Posted 2009-11-17 22:08
新手上路 Posts 7 Credits 14
Okay, I tried it before, and I used that to tie up a horse...
Floor15 robin329 Posted 2009-11-21 14:01
新手上路 Posts 4 Credits 8
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