updated notes

src/rhcsa.md

@@ -8,17 +8,17 @@
 ## Core Topics
 
 ### 1. Essential Tools
-- [ ] Access a shell prompt and issue commands
-- [ ] Use input-output redirection
-- [ ] Use grep and regular expressions
-- [ ] Access remote systems using SSH
-- [ ] Log in and switch users in multiuser targets
+- [x] Access a shell prompt and issue commands
+- [x] Use input-output redirection
+- [x] Use grep and regular expressions
+- [x] Access remote systems using SSH
+- [x] Log in and switch users in multiuser targets
 
 ### 2. File Management
-- [ ] Create, delete, copy, and move files and directories
-- [ ] Create and manage hard and soft links
-- [ ] Find files and directories
-- [ ] Manage file permissions and ownership
+- [x] Create, delete, copy, and move files and directories
+- [x] Create and manage hard and soft links
+- [x] Find files and directories
+- [x] Manage file permissions and ownership
 
 ### 3. Service Configuration
 - [ ] Configure networking and hostname resolution