Added more tips (unfinished).

README.md

@@ -1,6 +1,6 @@
-# Random Linux Tips
+# Random Linux Tips (WIP)
 
-## 1. Automatically clear cache.  
+### 1. Automatically clear cache.  
 - Description: Move files older than a specific amount of time from your user's ~/.cache directory to the trash.  
 - Requires: [https://github.com/PhrozenByte/rmtrash](rmtrash).  
 - How-To:  
@@ -8,3 +8,15 @@
 $ 0 17 * * * /usr/bin/find ~/.cache/* -mtime +7 -exec /usr/bin/rmtrash -rf {} \;  
     - This command looks at files in ~/.cache every day at 5 p.m. and moves files older than 7 days to the trash.  
 - Additionally: This can also be done using regular "rm" instead of "rmtrash".  
+  
+### 2. Clean systemd journal.  
+https://wiki.archlinux.org/title/Systemd/Journal#Journal_size_limit  
+https://wiki.archlinux.org/title/Systemd/Journal#Clean_journal_files_manually  
+  
+### 3. Syntax highlight for nano
+https://wiki.archlinux.org/title/Nano#Syntax_highlighting  
+  
+### 4. Repeat a command using watch.
+
+### 5. Use sudo !!.  
+