Cheat sheets
Compact, printable references for the commands you use every day.
Docker & Containers
Docker CLI Cheat Sheet
The Docker commands you use every day — containers, images, volumes, networks, Compose, troubleshooting and cleanup — on one printable page.
LinuxLinux Troubleshooting Cheat Sheet
The commands to find out what is wrong on a Linux server: disk, memory, services, logs, ports, permissions, SSH and SELinux, on one printable page.
DatabasesPostgreSQL Admin Cheat Sheet
psql commands and queries for running PostgreSQL: roles and grants, sizes, active queries and locks, sequences, vacuum, config, backup and restore.