I want to generate the random numbers and then use it as the "index
" to get the data from other array list.
Given a number 5
, and then generate 5 numbers
in the sequence of [1..5]
, and then shuffle
them into the random order.
Here are two examples output after shuffling the numbers:
1, 3, 5, 2, 4
2, 5, 1, 4, 3
Gien a number 100
, then generate 100 numbers
in [1...100]
, then shuffle them using the same method.
Now define a shuffle function in bash:
shuffle_numbers() {
local range="$1"
# Use method from "Mark Setchell"
# numbers=( $seq 100 | shuf )
# The value of numbers should be:
# 1, 3, 5, 2, 4
# or
# 2, 5, 1, 4, 3
# or
# ..other random orders if the $range is 5.
# or
# ... 100 random orders if the $range is 100...
sprintf "%s" "$numbers"
}
How to implement the shuffle_numbers
in bash?
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