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Logic shuffle

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# 1  
Old 04-25-2017
Logic shuffle
Hi,

Is there any way I can shuffle the numbers randomly. I have been trying to google and I found lots of 'generator' but is it possible to find the background logic to create randomness?

Thanks,
# 2  
Old 04-25-2017
Some shells like bash have a pseudorandom random number generator.
Which is more than adequate to simulate dealing from a deck of cards.

Here is documentation on using the $RANDOM variable to do what you asked:

$RANDOM: generate random integer

Here are examples of what goes on behind the scene:
Random number generator (included) - Rosetta Code
This User Gave Thanks to jim mcnamara For This Post:
Indra2011
# 3  
Old 04-26-2017
do we have anything with awk please?
# 4  
Old 04-26-2017
Quote:
Originally Posted by Indra2011
do we have anything with awk please?
Just look at the man awk file.
From 'man awk' on OSX 10.12.4, default bash terminal.
Code:
       rand   random number on (0,1)

       srand  sets seed for rand and returns the previous seed.

       int    truncates to an integer value

Code:
Last login: Wed Apr 26 17:45:25 on ttys000
AMIGA:amiga~> awk 'BEGIN { print int(rand(srand)*17); }'
14
AMIGA:amiga~> awk 'BEGIN { print int(rand(srand)*17); }'
12
AMIGA:amiga~> awk 'BEGIN { print int(rand(srand)*17); }'
12
AMIGA:amiga~> awk 'BEGIN { print int(rand(srand)*17); }'
1
AMIGA:amiga~> awk 'BEGIN { print int(rand(srand)*17); }'
7
AMIGA:amiga~> awk 'BEGIN { print int(rand(srand)*17); }'
7
AMIGA:amiga~> awk 'BEGIN { print int(rand(srand)*17); }'
5
AMIGA:amiga~> awk 'BEGIN { print int(rand(srand)*17); }'
8
AMIGA:amiga~> awk 'BEGIN { print int(rand(srand)*17); }'
12
AMIGA:amiga~> awk 'BEGIN { print int(rand(srand)*17); }'
10
AMIGA:amiga~> _

Hope this helps...
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