What is the method to retrieve a specific json element using python on the Linux command line without utilizing jq?

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One method to retrieve a specific json element using python on the Linux command line without utilizing jq is to use the following command:

python -c "import json,sys;obj=json.load(sys.stdin);print(obj['key'])" < file.json

Replace 'key' with the specific key of the element you want to retrieve from file.json. The command reads the json data from file.json via standard input (stdin) and prints the value of the specified key.

You can also use the grep command to extract the value of a specific key as follows:

grep -Po '"key": *\K.*?(?=,|\})' file.json

Replace 'key' with the specific key of the element you want to retrieve from file.json. The -Po option of grep extracts only the matched pattern, and the Regex pattern \K.*?(?=,|\}) extracts the value of the specified key by looking for the key followed by a colon (ignores spaces), and then matching any characters until a comma or closing curly brace is encountered.