Well, the default seed is the hardware TOD, so there will appear to be a
pattern on the first one.
Since I'm running at a different time of day at the moment:
RANDY EXEC A1 V 130 Trunc=130 Size=7 Line=0 Col=1 Alt=
|...+....1....+....2....+....3....+....4....+....5....+...
00000 * * * Top of File * * *
00001 /* */
00002 Address Command
00003 Do 5
00004 'PIPE RANDOM | TAKE 3 | SPECS 1-* C2X 1 | CONSOLE'
00005 'CP SLEEP 1 SEC'
00006 End
00007 Exit
00008 * * * End of File * * *
randy
70375293
5293FD8C
FD8C0A1D
70393B6C
3B6D7295
729698AC
703B2410
2410E65A
E65A218A
703D0CFE
0CFE5BDB
5BDCB235
The first random number shows a pattern (x'70' for me, simply because of the
time of day).
Then the 2nd and 3rd numbers are more truly random as expected.
But, I put the above in an EXEC, and it appears than unlike Rexx Random(),
where the seed is set/defaulted during the first call of the exec, and the
results seem much more random from that point on, with PIPE, each new call to
RANDOM within the same EXEC starts over with the hardware TOD as a seed again.
Even in a REXX Filetype, using CALLPIPE instead of PIPE, the hardware TOD is
re-used each time.
For Rexx Random(): The random number generator is global for an entire
program; the current seed is not saved across internal routine calls.
The same (global for an entire program) cannot be said of PIPE RANDOM.
-----Original Message-----
From: CMSTSO Pipelines Discussion List [mailto:[email protected]] On
Behalf Of Frank M. Ramaekers
Sent: Tuesday, July 20, 2010 7:34 AM
To: [email protected]
Subject: Re: PIPE to generate random passwords
Hmmm....doesn't seem quite so random:
pipe random | take 3 | spec 1-* c2x | console
5AA27BD9
7BDAB76A
B769F1DD
Ready; T=0.01/0.01 09:32:00
pipe random | take 3 | spec 1-* c2x | console
5AD1683C
683D4015
4015D662
Ready; T=0.01/0.01 09:32:24
pipe random | take 3 | spec 1-* c2x | console
5AD4C33A
C33961EB
61EC6E78
Ready; T=0.01/0.01 09:32:26
pipe random | take 3 | spec 1-* c2x | console
5AE27547
75488DBE
8DBD32F6
Ready; T=0.01/0.01 09:32:33
pipe random | take 3 | spec 1-* c2x | console
5AE6E218
E2181A7E
1A7EAC1A
Ready; T=0.01/0.01 09:32:36
(First one always started with 5A).
Frank M. Ramaekers Jr.
-----Original Message-----
From: CMSTSO Pipelines Discussion List
[mailto:[email protected]] On Behalf Of Dave Jones
Sent: Tuesday, July 20, 2010 9:06 AM
To: [email protected]
Subject: Re: [CMS-PIPELINES] PIPE to generate random passwords
How's this, Frank?
pipe random | take 3 | spec 1-* c2x | console
The output will be eight random characters, you could of course chop them up
into shorter strings....
DJ
On 07/20/2010 08:18 AM, Frank M. Ramaekers wrote:
> Is there a way (in PIPEs, of course) to generate random passwords.
(6-8
> random valid characters)
>
>
>
> Frank M. Ramaekers Jr.
>
>
>
> Systems Programmer
>
> MCP, MCP+I, MCSE& RHCE
>
> American Income Life Insurance Co.
>
> Phone: (254)761-6649
>
> 1200 Wooded Acres Dr.
>
> Fax: (254)741-5777
>
> Waco, Texas 76701
>
>
>
>
>
>
> _____________________________________________________
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and is solely for the use of the
> intended recipient. If you are not the intended recipient, be aware
that any review, disclosure,
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--
Dave Jones
V/Soft
www.vsoft-software.com
Houston, TX
281.578.7544
_____________________________________________________ This message contains
information which is privileged and confidential and is solely for the use of
the intended recipient. If you are not the intended recipient, be aware that
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destroy it immediately and notify us at [email protected].
