Extract JSON object using Bash shell? [duplicate]

Question

I have a following json file and I'm looking for a way to extract object using object path using bash shell.

For example, if I say extract('production-ap/ap-northeast-1'), then it will return me "accessKey": "OO", "accountID": "99".

I like bash shell scripting but have limited knowledge of it, please help!

Thanks

{
    "production-ap": {
        "ap-northeast-1": {
            "accessKey": "OO",
            "accountID": "99"
        },
        "ap-northeast-2": {
            "accessKey": "AB",
            "accountID": "12"
        }
    },
    "production-eu": {
        "eu-west-1": {
            "accessKey": "CD",
            "accountID": "34"
        },
        "us-east-1": {
            "accessKey": "CD",
            "accountID": "34"
        }
    },
    "production-us": {
        "us-east-1": {
            "accessKey": "EF",
            "accountID": "56"
        },
        "us-east-2": {
            "accessKey": "EF",
            "accountID": "56"
        }
    },
    "stage-ap": {
        "ap-northeast-1": {
            "accessKey": "AK",
            "accountID": "78"
        },
        "ap-northeast-2": {
            "accessKey": "AK",
            "accountID": "78"
        }
    },
    "stage-eu": {
        "eu-west-1": {
            "accessKey": "AK",
            "accountID": "55"
        },
        "eu-west-2": {
            "accessKey": "AK",
            "accountID": "55"
        }
    },
    "stage-us": {
        "us-east-1": {
            "accessKey": "AK",
            "accountID": "30"
        },
        "us-east-2": {
            "accessKey": "AK",
            "accountID": "30"
        }
    },
    "private": {
        "us-west-2": {
            "accessKey": "z2",
            "accountID": "52"
        },
        "us-west-1": {
            "accessKey": "z2",
            "accountID": "52"
        }
    }
}

@atupal, they all use python,... third party lib which my project requires no dependencies except bash shell — Nam Nguyen
– Nam Nguyen, Commented Mar 11, 2014 at 4:58

Noufal Ibrahim · Accepted Answer · 2014-03-11 05:03:38Z

4

It's going to be flaky doing this using bash. There do seem to be json parsers written as shell scripts although I'm not sure how solid they are. I'd recommend something like jq which can run as a separate program and be used in a pipe. It's a standalone executable and written in C. There's no reason it can't be shipped along with your program.

answered Mar 11, 2014 at 5:03

Noufal Ibrahim

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2 Comments

Nam Nguyen Over a year ago

look like JSON.sh you suggested works as expected. I'm testing it more.

Nam Nguyen Over a year ago

I took JSON.sh as the solution. It works very well. Thanks

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