我有一个由科学仪器创建的层次较深的
JSON对象,因此该文件有点大(1.3MB),并且人们不容易阅读.我想获得JSON对象的密钥列表,直到一定深度.例如,给出这样的输入对象
{
"acquisition_parameters": {
"laser": {
"wavelength": {
"value": 632,"units": "nm"
}
},"date": "02/03/2525","camera": {}
},"software": {
"repo": "github.com/username/repo","commit": "a7642f","branch": "develop"
},"data": [{},{},{}]
}
我想要这样的输出.
{
"acquisition_parameters": [
"laser","date","camera"
],"software": [
"repo","commit","branch"
]
}
这主要是为了能够枚举JSON对象中的内容.处理JSON对象后,仪器开始分歧：例如,有些可能有一个字段,如.frame.cross_section.stats.fwhm,而其他可能有.sample.species,所以能方便查询命令行上的JSON对象.
解决方法
以下内容应该完全符合您的要求
jq '[(keys - ["data"])[] as $key | { ($key): .[$key] | keys }] | add'
这将给出以下输出,使用上述输入：
{
"acquisition_parameters": [
"camera","laser"
],"software": [
"branch","repo"
]
}