jq select objects based on a value

Thu, 26 Aug 2021 00:00:00 +0000

Initial json input

{
 "ACTION": "domain.list",
 "DATA": [
 {
 "TYPE": "slave",
 "AXFR_IPS": "none",
 "DOMAIN": "domain1.com",
 "TTL_SEC": 0,
 "SOA_EMAIL": "",
 "DOMAINID": 11111,
 "DESCRIPTION": "",
 "EXPIRE_SEC": 0,
 "RETRY_SEC": 0,
 "STATUS": 1,
 "LPM_DISPLAYGROUP": "",
 "REFRESH_SEC": 0
 },
 {
 "TYPE": "slave",
 "AXFR_IPS": "none",
 "DOMAIN": "domain2",
 "TTL_SEC": 0,
 "SOA_EMAIL": "",
 "DOMAINID": 22222,
 "DESCRIPTION": "",
 "EXPIRE_SEC": 0,
 "RETRY_SEC": 0,
 "STATUS": 1,
 "LPM_DISPLAYGROUP": "",
 "REFRESH_SEC": 0
 },
 {
 "TYPE": "slave",
 "AXFR_IPS": "none",
 "DOMAIN": "domain3",
 "TTL_SEC": 0,
 "SOA_EMAIL": "",
 "DOMAINID": 33333,
 "DESCRIPTION": "",
 "EXPIRE_SEC": 0,
 "RETRY_SEC": 0,
 "STATUS": 1,
 "LPM_DISPLAYGROUP": "",
 "REFRESH_SEC": 0
 }
 ],
 "ERRORARRAY": []
}

Return the DOMAINID from domain2

jq '.DATA[] | select(.DOMAIN == "domain2") | .DOMAINID'
22222

Return DOMAINID and TYPE from domain2

jq '.DATA[] | select(.DOMAIN == "domain2") | .DOMAINID,.TYPE'
22222
"slave"

Return DOMAINID, DOMAIN from domain2 and domain3

jq '.DATA[] | select(.DOMAIN == ("domain2","domain3")) | .DOMAINID,.DOMAIN'
22222
"slave"
33333
"slave"

# or

jq '.DATA[] | select(.DOMAIN | IN("domain2", "domain3")) | .DOMAINID,.DOMAIN'
22222
"slave"
33333
"slave"

References:

¹ Github Issue

https://github.com/stedolan/jq/issues/370 ↩︎

OR statement within jq select

Thu, 26 Aug 2021 00:00:00 +0000

Initial json input

{
 "nodes": [
 {
 "name": "crc-4727w-master-0",
 "cpu": 75,
 "memory": 82
 },
 {
 "name": "crc-4727w-worker-0",
 "cpu": 65,
 "memory": 70
 },
 {
 "name": "crc-4727w-worker-1",
 "cpu": 60,
 "memory": 68
 }
 ]
}

The jq select filter with a comparison
- Is going to show the nodes that the cpu usage is greater than 70% OR the memory usage is greater than 90%

jq '.nodes[] | select(.cpu >=70 or .memory >=90)'

Result

{
 "name": "crc-4727w-master-0",
 "cpu": 75,
 "memory": 82
}

json | Luis Cacho

jq select objects based on a value

OR statement within jq select