jqコマンドで要素を削除する方法(del関数)
Posted: 2019-12-03
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目次
はじめに
このブログでは散々書いてきたことですが、linuxで使えるjson操作コマンドとして一番使われているのは jqコマンド だと思います。
今回は今まであまり使ったことがなかった 要素の削除 という方法について書きたいと思います。
やりたいこと
以下のようなjsonがあった時、
{
"users": [
{
"name": "mura",
"age": 30,
"job": "engineer"
},
{
"name": "ken",
"age": 31,
"job": "sales"
}
]
}
以下のように jobだけを消した 結果を得たい
{
"name": "mura",
"age": 30
}
{
"name": "ken",
"age": 31
}
やり方
jqの del という関数を使います。
コマンドは以下の通りです。
# cat users.json | jq '.users[] | del(.job)'
とっても簡単にjsonの中身を整形することができます。
やはりjqは便利です。
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