Shell

Touch ID for sudo

sudo nano /etc/pam.d/sudo

Add this as the second line of the file under the comment:

auth       sufficient     pam_tid.so

Zsh

brew install zsh # get the latest version

# You may need to add the Homebrew version of Zsh to the list on /etc/shells
sudo nano /etc/shells # add the output of "which zsh" to the top of the list, save the file.

where zsh # you might see both the shell that came with your Mac and the latest from Homebrew
which zsh # make sure this returns the one from Homebrew.

chsh -s $(which zsh)
# Install Oh My Zsh, a framework for managing your Zsh configuration with plugins and themes
sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

Oh My Zsh

Plugins

Add any built-in plugins you need to your ~/.zshrc

plugins=(git macos python)

You can also add custom plugins by cloning the repo into the $ZSH_CUSTOM/plugins/ directory and adding it to the plugins list in ~/.zshrc or with Homebrew.

The zsh-autosuggestions plugin auto suggests previous commands.

brew install zsh-autosuggestions
# To activate, add this to your ~/.zshrc:
source $(brew --prefix)/share/zsh-autosuggestions/zsh-autosuggestions.zsh

The zsh-syntax-highlighting plugin highlights valid commands green and invalid ones red so you don't have to test the command to see if it will work.

brew install zsh-syntax-highlighting
# To activate, add this to your ~/.zshrc:
source $(brew --prefix)/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh

Themes

Some Oh My Zsh themes like Spaceship have font requirements.
You can install fonts with Homebrew by adding the fonts repository. Fira Code is a good one for programming and computer science.

brew tap homebrew/cask-fonts
brew install --cask font-fira-code

Or get a ton of fonts with:

git clone https://github.com/powerline/fonts.git --depth=1
./fonts/install.sh
rm -rf fonts

Install your Oh My Zsh theme e.g. Spaceship (requires at least the Fire Code font)

brew install spaceship
# If the theme is not copied to your themes folder, sim link from the Homebrew dir to your custom themes folder e.g.
ln -sf $(brew --prefix)/Cellar/spaceship/4.4.1/spaceship.zsh $ZSH_CUSTOM/themes/spaceship.zsh-theme

touch ~/.spaceshiprc.zsh

Any time you edit your zsh configuration file you can reload it to apply changes.

source ~/.zshrc

Verify that you're using the shell you want. In the output of the env | grep zsh command look for something like /opt/homebrew/bin/zsh.

Bash

If you want to use bash

brew install bash # get the latest version of bash
chsh -s $(which bash)
nano ~/.bash_profile 

Terminal app replacement

You can use iTerm or Warp

brew install --cask iterm2
brew install --cask warp

Install iTerm 2 color schemes

git clone https://github.com/mbadolato/iTerm2-Color-Schemes.git
cd iTerm2-Color-Schemes

# Import all color schemes
tools/import-scheme.sh schemes/*

Set your iTerm preferences like default shell, font e.g. Fira Code, and colors:
iTerm2 > Settings > Profiles > Colors > Color Presets