updated notes

src/rhcsa.md

@@ -63,3 +63,19 @@
 
 ---
 *Note: Check boxes can be used to track progress on each topic as you study*
+
+---
+---
+
+# CLI Commands
+
+## Networking
+
+```bash
+nmtui # Network Manager Text User Interface
+
+sudo ip addr add dev eth0 192.168.2.2/24 # Add an IP address to the interface eth0 Note: Not persistent, will be lost on reboot
+```
+
+
+