Split variable containing JSON into two variables

[LarryPowel]

Our dev who is not familiar with openwrt is trying to code something but he's not getting anywhere.

He has this kind of sting for example;

[{"mn":"001","sn":"001","fr":"00.69","hr":"01.00"}]
[{"1":"26.75","2":"42.16","3":"9","4":"827.301","5":"78.53","6":"2","7":"415","8":"73.10","9":"21.71","10":"0","11":"0.0","12":"0.0","13":"0.000"}]

which is mainly two JSON separated by a newline that I get and place into a variable.
I need to split these int two bash variables.
I tried the following but with no result

    ## Execute command
    what="/etc/pgm_that_sends_back_the string"
    which_command=$($what)
    echo "FULL: $which_command"
    ## Split string into an array
    IFS="\n"
    read -ra tmp <<< "$which_command"
    IFS=' '
    ## Assign array elements to single variables
    json_0=${tmp[0]}
    json_1=${tmp[1]}

The result is always weird since it is interpreting "\n" as the letter "n"
Any idea of how to do it using openwrt bash?

[LarryPowel]

His reply,

This is unrelated to the problem i am having with the JSON sent by the program.

[grrr2]

try with IFS=$'\n'

[vgaetera]

# Option 1
A1="${A%%$'\n'*}"
A2="${A##*$'\n'}"

# Option 2
A1="$(echo "${A}" \
| sed -n -e "1p")"
A2="$(echo "${A}" \
| sed -n -e "2p")"

# Option 3
I="1"
while read -r "A${I}"
do let I++
done << EOI
${A}
EOI

[LarryPowel]

Ok, I passed that on and will update as soon as i get feedback.

[LarryPowel]

I'm told this did the trick.

The following script work fine :

#!/bin/bash


delimiter=
```\n'
str=$which_command$delimiter
array=();
while [[ $s ]]; do
  array+=( "${s%%"$delimiter"*}" );
  s=${s#*"$delimiter"};
done;
echo${array[0]}
echo${array[1]}