Reference
Developer cheatsheets
Dense, scannable reference cards for the commands you reach for daily. Real, general-purpose syntax — the same on any machine — laid out to print cleanly and sit beside your editor.
Linux terminal on AndroidThe everyday commands for driving a real Linux shell from a phone — navigating the filesystem, moving files, inspecting processes, managing permissions and following logs. All standard POSIX / GNU coreutils, exactly as they behave on any Linux box.33 commandsSSH & SFTPConnecting to remote machines, managing keys, tunnelling ports and moving files securely. Real OpenSSH client commands — the same ones you would type on a laptop to reach a server, Raspberry Pi or VPS from your phone.21 commandsSQL basicsThe core of relational databases: querying, filtering, joining, aggregating and changing data, plus the schema and transaction statements you reach for daily. Standard SQL that works across PostgreSQL, MySQL, SQLite and most engines — minor dialect differences aside.25 commands