# Random Linux Tips (WIP)
  
### 0. *Short example template.*  
- Description: *What is this good for.*  
- Requires: *Do you need any particular software (provide a link)?*
- How-to: *Straight forward description and maybe a code example.* 
    - *Detailled description if necessary.*  
    - $ sudo this is the actual code lol  
- Aditionally: *Anything else that might be important like additional ressources.*  
  
[[_TOC_]]
  
### 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:  
    - Add the following line to your crontab using the command "crontab -e" (or EDITOR=$editor crontab -e):  
    - $ 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 !!.  
  
### 6. Prevent overwriting files.  
- Description: Use alias for *rm*, *cp* and *mv*.  
- How-to: Add the following alias into your ~/.bashrc.  
    - Use *-interactive* option to get asked before overwriting files.  
    - $ alias mv="mv -i"  
- Additionally: Further reading in the Arch wiki.  
  
[www.test.de](test)