Update cheatsheets

tldr/linux/systemctl-try-restart

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# systemctl try-restart
+
+> Restart one or more units only if they are currently running.
+> More information: <https://www.freedesktop.org/software/systemd/man/latest/systemctl.html#try-restart%20PATTERN%E2%80%A6>.
+
+- Restart a specific unit if it is running:
+
+`systemctl try-restart {{unit}}`
+
+- Restart multiple units if they are running:
+
+`systemctl try-restart {{unit1 unit2 ...}}`
+
+- Restart all units matching a pattern if they are running:
+
+`systemctl try-restart '{{pattern}}'`