• Use Oil Shell if you want a faster and more modern version of Bash that’s compatible with it and offers more modern oil language.
  • Use Zsh if you want better extendability and more plugins.
  • Use Fish if you want perfect out of the box configuration and a more modern (and less verbose for most cases) scripting language.
  • Use Dash/Ash if you want better speed and full POSIX compliance (no extension, no unimplemented features).
  • Use Yash if you want better autocomplete but still faster than Bash.
  • Use Xonsh if you want an awesome Python-based scripting experience and very nice autocomplete.
  • Use Elvish if you want a more modern scripting language.
  • Or use anything. Any shell will be better than Bash. Bash is slow, not POSIX compliant, and doesn’t offer Zsh/Fish level autocomplete.