Bash, Zsh, sh, tcsh, and the TUI tools built on top of them — prompts, scripting, multiplexers, and terminal troubleshooting.
A complete walkthrough setting up a terminal-based git interface — staging, committing, browsing history, and resolving conflicts visually, without leaving the keyboard or the terminal.
A complete walkthrough of the two genuinely essential shell scripting debugging tools — one that traces exactly what a script actually executes, and one that catches whole categories of bugs before the script ever runs.
A complete walkthrough of the actual difference between an alias and a function, when each one is the right tool, and how to avoid the specific mistakes that make aliases behave unpredictably.
A complete walkthrough of GNU screen — older and less feature-rich than tmux, but still genuinely useful, and often already pre-installed on systems where tmux isn't.
A complete walkthrough setting up Windows Terminal specifically for a smooth WSL experience — default profile, font, and the settings that most commonly need adjusting.
A complete walkthrough installing and configuring a full-screen terminal system monitor — real-time CPU, memory, and process information, entirely keyboard-driven, without leaving the terminal.
A complete walkthrough writing shell scripts that run correctly under any POSIX-compliant shell — not just whichever one happens to be installed on your own development machine.
A complete walkthrough setting up fzf — a general-purpose fuzzy finder that plugs into history search, file finding, and practically any list-based shell workflow you can pipe text into.
A complete walkthrough installing Starship — a fast, shell-agnostic prompt that works identically across Bash, Zsh, and fish — and configuring exactly which information it shows.
A complete walkthrough installing Zsh as your shell, setting up Oh My Zsh, and configuring a theme and a first useful plugin — from a completely default shell to a genuinely productive one.