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鑑於此JSON片段，我試圖找出使用jq提取與特定「實例id」相對應的密鑰的名稱。從json中提取密鑰
我想這一點：
jq '.machines | keys as $x | if .[]."instance-id"=="wdc7ae" then <some-code-to-get-the-key> else empty end'
其中$ x的所有號碼機。和 「wdc7ae」 是具體的 「實例ID」 值
{
"model": {
"name": "maas2",
"controller": "ctr-xenial",
"cloud": "maas",
"version": "2.0.1"
},
"machines": {
"1": {
"dns-name": "10.4.0.181",
"instance-id": "wdc7ae",
"series": "xenial"
},
"2": {
"dns-name": "10.4.0.182",
"instance-id": "7mx74d",
"series": "xenial"
},
"3": {
"dns-name": "10.4.0.183",
"instance-id": "rgn3ca",
"series": "xenial"
},
"4": {
"dns-name": "10.4.0.184",
"instance-id": "kmy4bh",
"series": "xenial"
},
"5": {
"dns-name": "10.4.0.185",
"instance-id": "eb38c7",
"series": "xenial"
}
}
}任何幫助深表感謝。