I have this JSON :

[
  {
    "id": "1",
    "agent": "23ef",
    "displayName": "foo.com"
  },
  {
    "id": "2",
    "agent": "23gh",
    "displayName": "foo2.com"
  },
  {
    "id": "3",
    "agent": "23gf",
    "displayName": "boo.com"
  }
]

Wanted to get the dataset for all objects which have foo in their displayName.

I am able to get when i pass the value as a string,

$ cat /tmp/z.json | jq -r '.[] | select(.displayName=="foo.com")'  {   "id": "1",   "agent": "23ef",   "displayName": "foo.com" }

But not getting when i try a regex. Can somebody help?

$ cat /tmp/z.json | jq -r '.[] | select(.displayName=="foo*")'