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proledatarian 58bc65b2e1 Update README.md 2022-02-07 20:49:49 +00:00
README.md Update README.md 2022-02-07 20:49:49 +00:00

README.md

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.

1. Automatically clear cache.

  • Description: Move files older than a specific amount of time from your user's ~/.cache directory to the trash.
  • Requires: 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. Limit Systemd journal size.

  • Description: Limit the Systemd journal to a specific size.
  • Requires: Specific to systems using Systemd.
  • How-to:
    • Edit /etc/systemd/journald.conf and change SystemMaxUse=50M.
  • Additionally: ArchWiki: Systemd.
  • Additionally: This can also be achieved using journalctl and be limited by time.

3. Syntax highlight for nano

  • Description: Enable syntax highlighting for nano.
  • Requires:
  • How-to: Edit ~/.config/nano/nanorc or to /etc/nanorc and add the following.
    • include "/usr/share/nano/*.nanorc".
  • Additionally: ArchWiki: Nano.

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.

7. Paccache timer

  • Requires: A pacman-based distro and the pacman-contrib package.

8. Passwordless SSH

9. Automatically clean orphaned packages.

0 20 * * * /usr/bin/pacman -Qtdq | /usr/bin/pacman -Rns -