- Get the real IP address using CloudFlare and nginx
- Set up shell aliases
- Access a POP3-account from the command line
- Compare the content of directories
- Access a VirtualBox image from the command line
- Fix "Leaking Memory" warning
- Fix locale warnings in Perl
- Backup and restore a MySQL database
- Kill all processes belonging to a single user
- Copy files and preserve filestamps, ownership and permissions