jello

Filter JSON with Python

$ echo '[1,2,3]' | jello '[x*2 for x in _]'

$ cat [data.json] | jello '_.name'

$ cat [data.json] | jello '[x for x in _ if x["age"] > 30]'

$ cat [data.json] | jello -p

$ jello -i 'result = {}'

$ cat [data.json] | jello -l '_.items'

jello [options] [expression]

jello filters JSON using Python expressions. The input JSON is available as underscore (_) variable.
The tool combines jq-like filtering with Python's full expression power. It handles both JSON and JSON Lines.

EXPRESSION

Python expression (input is _).

Pretty print output.

Output JSON lines.

Raw string output.

Compact output.

Initialize mode.

Display help information.

Requires Python. Slower than jq for simple tasks. Underscore convention.

jello was created by Kelly Brazil as a Python-based alternative to jq for users more familiar with Python syntax.

jq(1), jc(1), python(1), gron(1)