macOS does not have Bash autocomplete feature installed and enabled by default as Linux distributions like Ubuntu does. You will have to install and configure bash-completion program for macOS to enable it which is available via Homebrew.

bash-completion can be installed and enabled in macOS from the terminal.

Steps to enable bash completion in macOS:

  1. Launch Terminal.
  2. Install Homebrew by running the following commands. 

    $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

  3. Install bash-completion via Homebrew. 

    $ brew install bash-completion

  4. Manually enable bash-completion for current session. 

    $ . /usr/local/etc/bash_completion

  5. Automatically enable bash-completion when launching a new shell session by adding the following lines to ~/.bashrc or ~/.bash_profile. 

    [ -f /usr/local/etc/bash_completion ] && . /usr/local/etc/bash_completion