$ coder users ls -o json | jq -c '.[] | select( .username == "charlie")' 
{"id":"5e8decf9-563f9fb3a7c02f6e0eafa422","email":"charlie@coder.com","username":"charlie","name":"Charlie","created_at":"2020-04-08T15:25:45.419609Z"}

$ coder users ls -o human | grep charlie
5e8decf9-563f9fb3a7c02f6e0eafa422        charlie@coder.com           charlie                                         Charlie   2020-04-08 15:25:45.419609 +0000 UTC