我有一个139,000行的JSON文件，其结构基本上如下所示（它是OpenStreetMap的摘录）：
{
"type": "FeatureCollection",
"generator": "overpass-ide",
"features": [
{
"type": "Feature",
"properties": {
"@id": "relation/7859",
"TMC:cid_58:tabcd_1:Class": "Area",
"TMC:cid_58:tabcd_1:LCLversion": "9.00",
"TMC:cid_58:tabcd_1:LocationCode": "4934",
"leisure": "park",
"name": "Platnersberg",
"type": "multipolygon",
"@geometry": "center"
},
"geometry": {
"type": "Point",
"coordinates": [
11.128184,
49.4706035
]
},
"id": "relation/7859"
},
{
"type": "Feature",
"properties": {
"@id": "relation/62370",
"TMC:cid_58:tabcd_1:Class": "Area",
"TMC:cid_58:tabcd_1:LCLversion": "8.00",
"TMC:cid_58:tabcd_1:LocationCode": "1157",
"admin_level": "6",
"boundary": "administrative",
"de:place": "city",
"name": "Eisenach",
"type": "boundary",
"@geometry": "center"
},
"geometry": {
"type": "Point",
"coordinates": [
10.2836229,
50.9916015
]
},
"id": "relation/62370"
}
]
}
我不希望在此文件中（最好以CSV文件的形式）获取名称，TMC位置代码和每个要素的坐标：
location_code,name,latitude,longitude
我知道我可以制作一个正则表达式，将所有多余的节点踢掉，但这将是一个相当复杂的正则表达式。我还在jq这里的OpenSuSE Leap 15.1机器上安装了该工具，但是当涉及到该工具时，我是个新手。
关于如何执行此提取工作的任何想法？
我本人是新角，但我认为
$ jq -r '.features[] | select(.type == "Feature") | [.properties."TMC:cid_58:tabcd_1:LocationCode",.properties.name,.geometry.coordinates[]] | @csv' file.json
"4934","Platnersberg",11.128184,49.4706035
"1157","Eisenach",10.2836229,50.9916015
应该做。该select(.type == "Feature")过滤器可能没有必要-我不知道是否有任何其他类型是可能的。
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我来说两句