Update cheatsheets

linux/getent

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# getent
+
+> Get entries from Name Service Switch libraries.
+> More information: <https://manned.org/getent>.
+
+- Get list of all groups:
+
+`getent group`
+
+- See the members of a group:
+
+`getent group {{group_name}}`
+
+- Get list of all services:
+
+`getent services`
+
+- Find a username by UID:
+
+`getent passwd 1000`
+
+- Perform a reverse DNS lookup:
+
+`getent hosts {{host}}`