From 7ec64dfbb9d7b1e73363afc8ceb1008ce5a31000 Mon Sep 17 00:00:00 2001
From: syui <syui@noreply.git.syui.ai>
Date: Sun, 3 Mar 2024 17:23:05 +0000
Subject: [PATCH] =?UTF-8?q?jq=20=E3=82=92=E8=BF=BD=E5=8A=A0?=
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---
 jq.md | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 jq.md

diff --git a/jq.md b/jq.md
new file mode 100644
index 0000000..fd39d81
--- /dev/null
+++ b/jq.md
@@ -0,0 +1,38 @@
+ここでは[aios](https://git.syui.ai/ai/os)にインストールされている[jq](https://github.com/jqlang/jq), [dasel](https://github.com/TomWright/dasel)の`example`をまとめます。
+
+## null
+
+`id:3`の`name:null`を除外して表示
+
+```json
+[
+  {
+    "id": 1,
+    "name": "aios",
+    "display": "ai os"
+  },
+  {
+    "id": 2,
+    "name": "archlinux",
+    "display": "Arch Linux"
+  },
+  {
+    "id": 3,
+    "display": "Linux Kernel"
+  }
+]
+```
+
+```sh
+$ echo $json|jq -r ".[]|{name, display}|select(.name | length > 0)|.name,.display"
+aios
+ai os
+archlinux
+Arch Linux
+```
+
+```sh
+$ echo $json|jq -r ".[]|.name // empty"
+aios
+archlinux
+```
\ No newline at end of file