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tldr/pages/common/jello.md
Vitor Henrique e7d5609dd3
pages*: improve list placeholders and wording of descriptions (#12111)
* pages*: improve wording and list placeholders

* clamav: fix verb tenses

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* buzzphrase: use k instead of n for number of phrases

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* adguardhome: use non-default instead of different

* adguardhome: use configuration instead of config

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* goimports, module: fix list placeholders

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* pages*: leave stems and extensions in the same placeholders

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Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

* qpdf: enclose n with backticks

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---------

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>
2024-01-31 09:25:19 +05:30

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# jello
> A command-line JSON processor using Python syntax.
> More information: <https://github.com/kellyjonbrazil/jello>.
- Pretty-print JSON or JSON-Lines data from `stdin` to `stdout`:
`cat {{file.json}} | jello`
- Output a schema of JSON or JSON Lines data from `stdin` to `stdout` (useful for grep):
`cat {{file.json}} | jello -s`
- Output all elements from arrays (or all the values from objects) in JSON or JSON-Lines data from `stdin` to `stdout`:
`cat {{file.json}} | jello -l`
- Output the first element in JSON or JSON-Lines data from `stdin` to `stdout`:
`cat {{file.json}} | jello _[0]`
- Output the value of a given key of each element in JSON or JSON-Lines data from `stdin` to `stdout`:
`cat {{file.json}} | jello '[i.{{key_name}} for i in _]'`
- Output the value of multiple keys as a new JSON object (assuming the input JSON has the keys `key_name1` and `key_name2`):
`cat {{file.json}} | jello '{"{{key1}}": _.{{key_name1}}, "{{key_name}}": _.{{key_name2}}}'`
- Output the value of a given key to a string (and disable JSON output):
`cat {{file.json}} | jello -r '"{{some text}}: " + _.{{key_name}}'`