Convert JSON file to have each set of curly brackets on a single line-CodePudding

I have a simple JSON file like this:

{
  "user_id": 123,
  "value": 99
},
{
  "user_id": 122,
  "value": 100
}

but I need it to look like this:

{"user_id": 123, "value": 99}
{"user_id": 122, "value": 100}

Basically every set of curly brackets should be on its own line. I was hoping it would be simple with jq but I'm quite new to it. Thank you in advance.

CodePudding user response：

If you get rid of the comma between the two objects (which is definitely invalid JSON), then just use jq's --compact-output (or -c) option and the identity filter ..

jq --compact-output '.'

{"user_id":123,"value":99}
{"user_id":122,"value":100}

Demo

CodePudding user response：

jq can be used to wrap the input (as raw text) inside [...], with the result being parsable by its builtin fromjson filter. Split the resulting array into separate objects again, and use -c to output each object on a single line.

$ cat old.txt
{
  "user_id": 123,
  "value": 99
},
{
  "user_id": 122,
  "value": 100
} 
$ jq -csR '"[\(.)]" | fromjson |.[]' old.txt
{"user_id":123,"value":99}
{"user_id":122,"value":100}