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jqで連続するオブジェクトを配列にする

Posted at

以下のようなやつ。

$ echo '{ "a": "1" }' '{ "b": "2"}' | jq
{
  "a": "1"
}
{
  "b": "2"
}

-s を使うと配列にできる

echo '{ "a": "1" }' '{ "b": "2"}' | jq -s
[
  {
    "a": "1"
  },
  {
    "b": "2"
  }
]

manにはこうかいてある

--slurp/-s:

           Instead  of  running  the  filter  for each JSON object in the
           input, read the entire input stream into a large array and run
           the filter just once.
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