json_parse.sh

# Using JSON.sh as a JSON parser
# Download https://github.com/dominictarr/JSON.sh

function jsonGetValue {
  ./JSON.sh | grep -F -e $1 | cut -f2 | tr -d '"'
}

# Usage
read -r -d '' JSON_DATA <<'EOF'
{
  "id": 1,
  "name": "A green door",
  "price": 12.50,
  "tags": ["home", "green"],
  "data": {
    "image_url": "http://path/to/image"
  }
}
EOF

# prints JSON
echo $JSON_DATA

# locate element position with
echo $JSON_DATA | ./JSON.sh

# output
# ["id"]  1
# ["name"]  "A green door"
# ["price"] 12.50
# ["tags",0]  "home"
# ["tags",1]  "green"
# ["tags"]  ["home","green"]
# ["data","image_url"]  "http://path/to/image"
# ["data"]  {"image_url":"http://path/to/image"}
# []  {"id":1,"name":"A green door","price":12.50,"tags":["home","green"],"data":{"image_url":"http://path/to/image"}}

# get name
echo $JSON_DATA | jsonGetValue '["name"]'

# get image url
echo $JSON_DATA | jsonGetValue '["data","image_url"]'