Working comfortably in the terminal

Articles

• bash — the command shell — A command interpreter for interactive input, builtins, and shell scripts.
• echo — printing text — Printing strings and variables; -n and -e, escaping, when to prefer printf.
• Basic file commands — Navigation and files — ls, cd, cp, mv, rm, cat, less, head, tail, terminal copy-paste.
• mkdir — creating directories — Creating directories: -p (with parents), -m (permissions right away), brace expansion, rmdir.
• sleep — delay execution — Pauses execution for a specified duration; does not test whether another program is ready.
• Processes — Viewing processes, signals and priorities; finding the processes that hog CPU or memory.
• less — page through a long file with search — The less pager shows a long file or command output screen by screen — scroll, search by word, follow the end.