Install a new Zsh shell with prompt, plugins, utils and custom aliases

install-zsh.sh

#!/usr/bin/env bash

# Install Zsh shell and shell utils
sudo apt update -y && sudo apt install -y exa bat zsh

# Install Oh My Zsh
sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

# Install and enable Spaceship prompt
git clone https://github.com/spaceship-prompt/spaceship-prompt.git "${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/themes/spaceship-prompt" --depth=1
ln -s "${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/themes/spaceship-prompt/spaceship.zsh-theme" "${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/themes/spaceship.zsh-theme"
sed -i 's/ZSH_THEME="robbyrussell"/ZSH_THEME="spaceship"/g' $HOME/.zshrc

# Create custom aliases
cat > ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/aliases.zsh << EOF
alias cat='batcat'
alias ls='exa'
EOF

# Install and enable ZSH plugins
git clone https://github.com/zsh-users/zsh-syntax-highlighting.git ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-syntax-highlighting
git clone https://github.com/zsh-users/zsh-autosuggestions         ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-autosuggestions
sed -i 's/plugins=(git)/plugins=(git zsh-autosuggestions zsh-syntax-highlighting)/g' $HOME/.zshrc

# Apply modifications
source $HOME/.zshrc

# Configure git
cat > $HOME/.gitconfig << EOF
[user]
    name = Laurent VAYLET
    email = laurent.vaylet@gmail.com
[pull]
    rebase = true
[fetch]
    prune = true
[diff]
    colorMoved = zebra
[init]
    defaultBranch = main
EOF

# [OPTIONAL] Install Google Cloud CLI
sudo apt install -y apt-transport-https ca-certificates gnupg
echo "deb [signed-by=/usr/share/keyrings/cloud.google.gpg] https://packages.cloud.google.com/apt cloud-sdk main" | sudo tee -a /etc/apt/sources.list.d/google-cloud-sdk.list
curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key --keyring /usr/share/keyrings/cloud.google.gpg add -
sudo apt update -y && sudo apt install -y google-cloud-cli
gcloud init

# References:
# - https://the.exa.website/
# - https://github.com/sharkdp/bat#installation
# - https://ohmyz.sh/#install
# - https://spaceship-prompt.sh/getting-started/#installing
# - https://github.com/zsh-users/zsh-autosuggestions/blob/master/INSTALL.md#oh-my-zsh
# - https://github.com/zsh-users/zsh-syntax-highlighting/blob/master/INSTALL.md
# - https://www.cyberciti.biz/faq/how-to-use-sed-to-find-and-replace-text-in-files-in-linux-unix-shell/
# - https://cloud.google.com/sdk/docs/install#deb