ZSH is pretty compatible and has great auto completion. The best thing for me is inline documentation (bash-completion only shows the list of available completi

ZSH is pretty compatible and has great auto completion. The best thing for me is inline documentation (bash-completion only shows the list of available completions and you have to derive their meanings by yourself). It's also much easier to write your own completion scripts than for bash. The syntax is relatively sane, although fish completion scripts are much cleaner than bash or ZSH. Stick to plain ZSH to avoid losing performance on bloated mess like oh-my-zsh, add fzf to quickly dig through history and find files/directories, and it's really the best option we have.