- apt get
- awk
- backup multiple remote folders with rsync
- backup remote folders with rsync
- bash
- bg fg background and foreground
- bin contents
- chmod file permissions
- colored output with bash
- count files recursively
- cron
- delete files older than 90 days
- digital ocean
- get processes list processes
- how much memory is free
- how to edit a file
- lets encrypt
- mkdir recursive force
- nano
- nginx
- profiles
- reboot
- redirect www https
- rename files with mv
- scp
- SSH
- sudo
- supervisor
- systemd
- uncomplicated firewall
- version
- what my ip address
- wkhtmltopdf
- xlsx to csv