Bash, Zsh, sh, tcsh, and the TUI tools built on top of them — prompts, scripting, multiplexers, and terminal troubleshooting.
A complete walkthrough running multiple shell sessions inside one terminal window, splitting panes, and — most importantly — keeping sessions alive across disconnects.
A complete walkthrough setting up a terminal-based file manager — navigating, previewing, and manipulating files entirely with the keyboard, without ever leaving the terminal.
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 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 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.
Ctrl-Z, bg, fg, and the & at the end of a command all touch the same underlying mechanism — a shell feature that manages which processes can read your keyboard input at any given moment.
Announced by maintainer Chet Ramey on February 20, 2009, Bash 4.0 added key-value associative arrays and several other features that had been requested by scripters for years.
Released as beta version .99 on June 8, 1989, Bash was built for the GNU Project as a genuinely free replacement for the Bourne shell — and would eventually become the default shell on more systems than any of the proprietary shells it set out to replace.
Distributed starting with the second Berkeley Software Distribution in 1979, Bill Joy's C shell introduced features — command history, aliases, filename completion — that nearly every shell since has copied in some form.
Released February 13, 2005 by Swedish developer Axel Liljencrantz, Fish chose sensible-by-default behavior and built-in syntax highlighting over POSIX compatibility — a genuinely different bet than Bash or Zsh made.