Update cheatsheets

tldr/linux/lid.libuser

@@ -0,0 +1,17 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# lid
+
+> Display a user's groups or a group's users.
+> More information: <https://manned.org/lid.8>.
+
+- List primary and secondary groups of a specific user:
+
+`sudo lid {{username}}`
+
+- List users of a specific group:
+
+`sudo lid --group {{name}}`