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- From: sabre@microsupport.sas.upenn.edu (Andrew White)
- Newsgroups: comp.os.msdos.programmer
- Subject: Re: Help on changing Copy
- Keywords: Midnight Arrow
- Message-ID: <98765@netnews.upenn.edu>
- Date: 23 Nov 92 02:57:18 GMT
- References: <Bxn4nE.8IH@news.cso.uiuc.edu> <v3gq0yl@lynx.unm.edu>
- Sender: news@netnews.upenn.edu
- Organization: University of Pennsylvania
- Lines: 30
- Nntp-Posting-Host: microsupport.sas.upenn.edu
-
- In article <v3gq0yl@lynx.unm.edu> moeur@chtm.eece.unm.edu (Bill Moeur) writes:
- >In article <Bxn4nE.8IH@news.cso.uiuc.edu> jlamb@ux4.cso.uiuc.edu (Jeffrey Richard Lamb) writes:
- >
- >>to kill machines. I'm not trying to write a virus. I made a bet with
- >>a friend that the copy command (or any other internal dos command)
- >>could be "turned off." What I want to do is simple. I want dos to access
- >>a file called "copy.bat" whenever anyone types in a copy command. The
- >>problem is that dos always checks for internal commands (copy) first,
- >>so dos never even looks at copy.bat, it just declares invalid number of
- >>parameters. I'm sure this can be avoided, but how? Again, I know it sounds
- >
- >If you're using DOS 5.0, try using doskey to alias the copy command to call
- >your batch file which is called something beside copy.bat.
- >for example:
- > DOSKEY copy=copy2 $1 $2
-
- My freshman year, we did something like this to a friend's computer
- by using DEBUG to change the name the DIR command in COMMAND.COM to
- DXR (or whatever), and then creating a hidden batch file in the
- path called "DIR.BAT" that contained one line:
-
- @DIR C:\
-
- so that whenever he did a DIR, he only saw the contents of the root
- directory. It was quite funny. Anyway, you could change the COPY
- command in a similar manner, albeit this is not a general solution
- to the problem.
- --
- Andrew White | Dod #0584
- sabre@quantum.sas.upenn.edu | '82 Honda Sabre v45
-