Package managers
Common distributions and their package managers.
Unix general tips
Tips and reminders that apply to Unix and similar operating systems.
less than a minute
This section provides help that applies to multiple operating systems and contexts, including:
- Server-based versions of Unix, such as FreeBSD
- Linux distributions, like Debian, RedHat, and Raspberry Pi OS
- Various command-line consoles, including Mac Terminal, Git Bash, and Windows Subsystem for Linux (WSL).
Resources & links
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Certificates
- Public key certificates (explains chain of trust and includes an interesting graphic) (Wikipedia)
- IETF RFS 5280: X.509 public key certificates (IETF)
- How to decode an SSL certificate (ShellHacks)
- Generate certificates for localhost (Let’s Encrypt)
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ag: The Silver Searcher: Fast alternative to grep & ack; ignores dot files, which means it’s useful for maintenance scripts and cleanup.