CODEWITHSUNDEEP
jsonjq
Bill
Bill

Reputation: 2973

how to get the output by jq

So I have below sample codes

{
  "host1": { "ip": "10.1.2.3" },
  "host2": { "ip": "10.1.2.2" },
  "host3": { "ip": "10.1.18.1" }
  ...
}

I need output of 'host1' and 'host3'

{
  "host1": { "ip": "10.1.2.3" },
  "host3": { "ip": "10.1.18.1" }
}

with command |jq .host1, I can only get one

{
  "ip": "10.1.2.3"
}

and I lost its key host1 as well

Upvotes: 1

Views: 40

Answers (1)

0stone0
0stone0

Reputation: 43983

I need output of 'host1' and 'host3'

If you can use a hardcoded list of keys, you can use the following JQ command to get only host1 and host3:

{ host1, host3 }

{
  "host1": {
    "ip": "10.1.2.3"
  },
  "host3": {
    "ip": "10.1.18.1"
  }
}

This uses the Object Construction Shortcut Syntax as explained in there documentation and in this SO question: jq: Can I use the name of an argument in the code itself?.

JqPlay Demo

Upvotes: 3

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