chsh - Have you considered switching your default shell?

• Are you stuck with bash?
• Have you tried zsh but found it too complex to set up properly?
• You've never found sh syntax compelling?

Let me introduce you to fish - Friendly Interactive SHell.

fish is a smart and user-friendly command line shell for macOS, Linux, and the rest of the family. fish includes features like syntax highlighting, autosuggest-as-you-type, and fancy tab completions that just work, with no configuration required.

I am using fish as my default shell for about two years now and love it.

• fish has autocomplete for most things you can imagine built-in. And if it lacks built-in support, it scans manual pages and extracts auto-completion information from there.
• autocomplete is context based, so the commands you typed recently in particular directory show first as suggestions.
• fish has help and config built-in in a very neat way - it launches your default browser with a page from local installation.
• built-in programming language of fish is a modern one, without holding to sh compatibility.

If you want to extend your local setup of fish with easily manageable plugins and themes, just install Oh My Fish:

curl -L https://get.oh-my.fish | fish

BEWARE: fish programming syntax differ from bash, thus one-liners you may be using will need adaptation. But fish detects most of misuse and has a helpful suggestions how you should rewrite your command.

> LANG=PL man manfish: Unsupported use of '='. To run 'man' with a modified environment, please use 'env LANG=PL man...'

Give it a try and let me know how it went.