有关: Getting data from json using jq when key is numerical string,但与数字键不同,因为我将数字键存储在变量中。请参见下面的示例。
文件temp.json
:
{
"bccc26321e360ae5fde94aac81eef7c7270bbfd90de0787d0e5b45be4b21ce53": {
"size": 189,
"fee": 0.00000678,
"modifiedfee": 0.00000678,
"time": 1535906461,
"height": 539665
},
"43906c7227610cd58a1c95714e4f79cd46e0d98ae3f4214f1b2cf325b628b70e": {
"size": 256,
"fee": 0.00008328,
"modifiedfee": 0.00008328,
"time": 1535906461,
"height": 539665
}
}
尝试使用变量建立索引:
#get second key 43906c7227610cd58a1c95714e4f79cd46e0d98ae3f4214f1b2cf325b628b70e
>txid=$(cat temp.json | jq 'keys' | jq .[1] | tr -d '"')
>cat temp.json | jq .$txid
jq: error: syntax error, unexpected IDENT, expecting $end (Unix shell quoting issues?) at <top-level>, line 1:
.43906c7227610cd58a1c95714e4f79cd46e0d98ae3f4214f1b2cf325b628b70e
jq: 1 compile error
>cat temp.json | jq '.$txid'
q: error: syntax error, unexpected '$' (Unix shell quoting issues?) at <top-level>, line 1:
.$txid
jq: error: try .["field"] instead of .field for unusually named fields at <top-level>, line 1:
.$txid
jq: 2 compile errors
>cat temp.json | jq '."$txid"'
null
所需的输出很简单
>cat temp.json | jq '."43906c7227610cd58a1c95714e4f79cd46e0d98ae3f4214f1b2cf325b628b70e"'
{
"size": 256,
"fee": 0.00008328,
"modifiedfee": 0.00008328,
"time": 1535906461,
"height": 539665
}
答案 0 :(得分:1)
如果您想要的是."xxx"
作为参数,请使用".\"$txid\""
。
如果您放下tr -d '"'
,".$txid"
可能就足够了。