You can use jq '.[] | .login, .id' to obtain each login followed by its id.

As a list of tab-separated values: Create an array of the wanted values for each issue[] and pass it to @tsv.

$ jq -r '.issues[] | [ .key, .fields.summary ] | @tsv' file.json
RM-111  6.6.0

As a string with the two values separated by a space: Create a double quoted string for each issue[] and use \(...) to interpolate the values within the string.

$ jq -r '.issues[] | "\(.key) \(.fields.summary)"' file.json
RM-111 6.6.0

The issue with the last two of your commands are that the first of them first gets .key and then .fields.summary. These two pieces of data would be outputted on separate lines.

The last command tries to extract .key.fields.summary, which does not exist.

Sorry didn't see all the attention here, @tony-sol you can do it like this:

yq '.[] |= pick(["name", "status"])' data1.yaml

Explanation:

• You want to pick particular fields from each map in the array
• .[] |= will match each element in the array, and update that element w.r.t itself
• pick([]) will take a given map and pick fields (omitting the rest)

See https://mikefarah.gitbook.io/yq/operators/pick for details.

The different with doing .[] | (.name, .status) is that will match all elements and just pulling out just those values.

Here is an approach using some sample code and data from my answer to a similar question on Stack Overflow.

To choose multiple fields you can use Object Construction. E.g this filter makes an object containing just PublicDnsName and VpcId from each instance:

  .Reservations[]
| .Instances[]
| {PublicDnsName, VpcId}

If this filter is in filter.jq and the sample data from that other answer is in data.json then running

$ jq -M -f filter.jq data.json

produces

{
  "PublicDnsName": "xxxxxxxx",
  "VpcId": "vpc-eb09eb8e"
}

Once you have objects containing what you want getting the data into another format (e.g. csv) is easy. With this filter

  .Reservations[]
| .Instances[]
| {PublicDnsName, VpcId}
| [.[]]
| @csv

and the -r option

$ jq -M -r -f filter.jq data.json

jq produces

"xxxxxxxx","vpc-eb09eb8e"

To add a filtering condition, e.g. VpcId is not null, add a select.

  .Reservations[]
| .Instances[]
| {PublicDnsName, VpcId}
| select(.VpcId != null)
| [.[]]
| @csv

jq supports the Boolean operators and/or/not, so it would look like:

.[] | select((.processedBarsVolume <= 5) and .processedBars > 0)

Fixed it using

$ docker-machine inspect default |
  jq '{ConfigVersion,
       Driver: (.Driver|{MachineName, CPU, Memory}),
       DriverName}'
{
  "ConfigVersion": 3,
  "Driver": {
    "MachineName": "default",
    "CPU": 2,
    "Memory": 5120
  },
  "DriverName": "virtualbox"
}

You forgot to filter the compontents array when selecting for Redundant System ROM.

A corrected variant of your code with some shortcuts added (note that -r is unneeded as you are outputting JSON, not raw strings):

jq '.members[] |
    {
        serverName,
        "system-firmware":
            .components[] | select(.componentName == "System ROM").componentVersion,
        "system-firmware-backup":
            .components[] | select(.componentName == "Redundant System ROM").componentVersion
    }' file

Given the data in the question, this would give you the following JSON document:

{
  "serverName": "my-host",
  "system-firmware": "A46 v2.80 (07/31/2023)",
  "system-firmware-backup": "A46 v2.60 (08/11/20223)"
}