Add jq examples

README.md

@@ -11,6 +11,7 @@
     * [Podman](./containerization/podman/README.md)
 * [curl](./curl.md)
 * [git](./git/README.md)
+* [jq](./jq.md)
 * [Linux](./linux/README.md)
     * [Archlinux](./linux/arch/README.md)
         * [Installation instructions for UEFI + GPT](./linux/arch/installation.md)

jq.md

@@ -0,0 +1,26 @@
+# jq
+
+## Examples
+
+### Get `RestartPolicy` from Docker container
+
+```
+# docker inspect container1 | jq '.[].HostConfig.RestartPolicy.Name'
+"unless-stopped"
+```
+
+### Get `RestartPolicy` from multiple containers in new JSON object list
+
+```
+# docker inspect container1 container2 | jq '[.[] | {policy_name: .HostConfig.RestartPolicy.Name, name: .Name}]'
+[
+  {
+    "policy_name": "unless-stopped",
+    "name": "container1"
+  },
+  {
+    "policy_name": "unless-stopped",
+    "name": "container2"
+  }
+]
+```