From 56c8d51b3b00d8f8919f0b464d8c4c04e8197368 Mon Sep 17 00:00:00 2001
From: Johannes Stoelp <johannes.stoelp@gmail.com>
Date: Mon, 7 Aug 2023 23:36:06 +0200
Subject: systemd: add state/type query examples

---
 src/linux/systemd.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/linux/systemd.md b/src/linux/systemd.md
index 14ced0b..18f87e5 100644
--- a/src/linux/systemd.md
+++ b/src/linux/systemd.md
@@ -7,6 +7,9 @@ Inspect units:
 systemctl [opts] [cmd]
 [opts]
     --user
+    --type=TYPE             List only given types eg, service, timer, socket (use --type=help for a list)
+    --state=STATE           List only given states eg running, enabled (use --state=help for a list)
+    --failed                List only failed services
 
 [cmd]
     list-units <pattern>    List units in memory
@@ -25,6 +28,15 @@ systemctl [opts] [cmd]
     show <unit>     Show properties of unit
 ```
 
+### Example: List failed units
+```bash
+# List all system failed units.
+systemctl --failed
+
+# List all user failed units.
+systemctl --user --failed
+```
+
 ### Example: Trivial user unit
 
 ```bash
-- 
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