1
鉴于此JSON片段，我试图找出使用jq提取与特定“实例id”相对应的密钥的名称。从json中提取密钥
我想这一点：
jq '.machines | keys as $x | if .[]."instance-id"=="wdc7ae" then <some-code-to-get-the-key> else empty end'
其中$ x的所有号码机。和 “wdc7ae” 是具体的 “实例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"
}
}
}任何帮助深表感谢。