Re: Seeding Randomization on CMD (WinXP Pro)
From: PsyB (psychopathNO_at_MEATshaw.ca)
Date: 10/06/04
- Next message: PsyB: "Re: Seeding Randomization on CMD (WinXP Pro)"
- Previous message: Mark V: "Re: Running a batch process with minimised window"
- In reply to: Mark V: "Re: Seeding Randomization on CMD (WinXP Pro)"
- Next in thread: Phil Robyn [MVP]: "Re: Seeding Randomization on CMD (WinXP Pro)"
- Messages sorted by: [ date ] [ thread ]
Date: Wed, 06 Oct 2004 14:41:38 -0600
Mark V wrote:
> In microsoft.public.win2000.cmdprompt.admin PsyB wrote:
>
>
>>Can anyone tell me how to get a *PROPER* random number? I have
>>defined a variable as follows:
>>
>>set randnumber=%random%
>>
>>When querying the contents of my variable %randnumber% when
>>staying inside the CMD prompt without an exit, the variable, of
>>course, is randomized. However since my script takes exactly the
>>same amount of time to run each time it is run, the random number
>>will always be the same since the %random% variable is never
>>seeded properly (indeed it follows the same progression of
>>"random" numbers each and every time that CMD is started). I have
>>tried various way to cause inconsistency in how fast the script is
>>executed including netstat, ping and dir - anything that might
>>change the execution time so that the number pulled from the pool
>>is different, though no matter what I have tried I end up
>>centering around a single number. Is there any way to generate a
>>real random number on CMD? Or is there any way to seed the CMD
>>line with the time or some other variable that would allow a
>>better randomization? Use of pause is out of the question, though,
>>as this needs to be a transparent script.
>
>
> All I can offer is this:
> http://www.optimumx.com/
> =================
> Random Number Generator v1.00 (Random.exe) Last Updated:
> 09/03/1998
>
> Returns an exit code (Errorlevel) of a pseudo-random number based on
> lowerbound and upperbound numbers passed as arguments. The number
> returned is much more random than the %RANDOM% variable. Use
> 'Random.exe /?' to view the syntax."
> =================
>
> I have used it for years but can only say that it is *more* random
> than %random%. I have no statistical study for the tool.
>
>
>
Thanks Mark! The results are much better than the cmd random!
(0-65535)
10/06/04 14:36:47.98 40675
10/06/04 14:36:48.21 8629
10/06/04 14:36:48.56 21153
10/06/04 14:36:48.94 49863
10/06/04 14:36:49.30 5391
10/06/04 14:36:49.69 46269
10/06/04 14:36:50.03 43875
10/06/04 14:36:50.37 39443
10/06/04 14:36:50.71 46841
10/06/04 14:36:51.10 24825
10/06/04 14:36:51.48 56105
10/06/04 14:36:51.84 56887
10/06/04 14:36:52.23 29617
10/06/04 14:36:52.63 33519
10/06/04 14:36:53.06 31879
10/06/04 14:36:53.45 42001
10/06/04 14:36:53.83 12659
10/06/04 14:36:54.22 60385
10/06/04 14:36:54.58 42743
10/06/04 14:36:54.97 49665
10/06/04 14:36:55.36 6645
10/06/04 14:36:55.77 62843
10/06/04 14:36:56.15 59877
10/06/04 14:36:56.59 55317
--
-=[PsyB]=-
Greater in battle than the man who would conquer a thousand-thousand men
is he who would conquer just one - *himself*.
--Dhammapada--
- Next message: PsyB: "Re: Seeding Randomization on CMD (WinXP Pro)"
- Previous message: Mark V: "Re: Running a batch process with minimised window"
- In reply to: Mark V: "Re: Seeding Randomization on CMD (WinXP Pro)"
- Next in thread: Phil Robyn [MVP]: "Re: Seeding Randomization on CMD (WinXP Pro)"
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
