shell get json value by key

shell_json_parse.sh

#!/usr/bin/env bash

# --- Usage: `./shell_json_parse.sh /path/to/package.json version`

get_value_by_key() {
	JSON_FILE=${1}
	KEY=${2}
	REGEX="(?<=\"${KEY}\":.\")[^\"]*"

	JSON_VALUE=$(cat ${JSON_FILE} | grep -Po ${REGEX})
	printf "\n-> REGEX: \n${REGEX}\n"
	printf "\n-> ${KEY}: \n${JSON_VALUE}\n\n"
}

get_value_by_key ${1} ${2}