json.md

Remove the trailing comma from json file

For example:

{
    "name": "Deamon",
    "age": 20,
}

We need to remove the trailing comma after 20.

We can use sed to do this:

sed -i -zr 's/,([^,]*$)/\1/' xxxx.json

-zr means:

-z, --null-data
    separate lines by NUL characters

-r, --regexp-extended
    use extended regular expressions in the script.