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edited Jul 30, 2017 at 14:39

Thanks for the below Note from @cas:
$b is NOT an array, it is a string containing "11 22"

The equivalent to

a=( 11 22 )

b=($(echo "11 22"))

As a result

$ a=( 11 22 )
$ b=($(echo "11 22"))
$ echo $a
11
$ echo ${a[*]}
11 22
$ echo $b
11
$ echo ${b[*]}
11 22

The equivalent to

a=( 11 22 )

b=($(echo "11 22"))

As a result

$ a=( 11 22 )
$ b=($(echo "11 22"))
$ echo $a
11
$ echo ${a[*]}
11 22
$ echo $b
11
$ echo ${b[*]}
11 22

Thanks for the below Note from @cas:
$b is NOT an array, it is a string containing "11 22"

The equivalent to

a=( 11 22 )

b=($(echo "11 22"))

As a result

$ a=( 11 22 )
$ b=($(echo "11 22"))
$ echo $a
11
$ echo ${a[*]}
11 22
$ echo $b
11
$ echo ${b[*]}
11 22

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answered Jul 30, 2017 at 14:27

The equivalent to

a=( 11 22 )

b=($(echo "11 22"))

As a result

$ a=( 11 22 )
$ b=($(echo "11 22"))
$ echo $a
11
$ echo ${a[*]}
11 22
$ echo $b
11
$ echo ${b[*]}
11 22