Complete Automated ZSH Setup Script for macOS#

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#!/bin/bash
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# Complete ZSH Setup Script for Fresh macOS
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# This script will set up a fully configured ZSH environment with autosuggestions and autocompletion
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# Step 1: Install Homebrew (macOS package manager)
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echo "Installing Homebrew..."
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/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
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# Add Homebrew to PATH for the current session
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echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> ~/.zprofile
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eval "$(/opt/homebrew/bin/brew shellenv)"
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# Step 2: Install Oh My Zsh
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echo "Installing Oh My Zsh..."
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sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended
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# Step 3: Install zsh plugins
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echo "Installing ZSH plugins..."
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git clone https://github.com/zsh-users/zsh-autosuggestions ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-autosuggestions
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git clone https://github.com/zsh-users/zsh-syntax-highlighting.git ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-syntax-highlighting
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git clone https://github.com/zsh-users/zsh-completions ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-completions
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# Step 4: Create a new .zshrc file with optimized configuration
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echo "Configuring .zshrc..."
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cat > ~/.zshrc << 'EOL'
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# Path to your oh-my-zsh installation
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export ZSH="$HOME/.oh-my-zsh"
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# Set theme
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ZSH_THEME="robbyrussell"
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# Set plugins
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plugins=(
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  git
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  macos
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  zsh-autosuggestions
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  zsh-syntax-highlighting
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  zsh-completions
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)
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# Load Oh My Zsh
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source $ZSH/oh-my-zsh.sh
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# Load auto-completion
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autoload -Uz compinit
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compinit
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# Enhanced completion configuration
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zstyle ':completion:*' menu select
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zstyle ':completion:*' completer _expand _complete _ignored _approximate
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zstyle ':completion:*' matcher-list 'm:{a-z}={A-Z}'
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zstyle ':completion:*' list-colors "${(s.:.)LS_COLORS}"
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zstyle ':completion:*' verbose yes
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zstyle ':completion:*:descriptions' format '%B%d%b'
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zstyle ':completion:*:messages' format '%d'
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zstyle ':completion:*:warnings' format 'No matches for: %d'
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zstyle ':completion:*:corrections' format '%B%d (errors: %e)%b'
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zstyle ':completion:*' group-name ''
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# Command auto-correction
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setopt correct
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# History configuration
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HISTSIZE=10000
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SAVEHIST=10000
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HISTFILE=~/.zsh_history
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setopt appendhistory
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setopt sharehistory
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setopt incappendhistory
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setopt hist_ignore_all_dups
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setopt hist_save_no_dups
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setopt hist_ignore_space
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setopt hist_verify
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# Autosuggestion settings
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ZSH_AUTOSUGGEST_STRATEGY=(history completion)
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ZSH_AUTOSUGGEST_BUFFER_MAX_SIZE=20
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ZSH_AUTOSUGGEST_HIGHLIGHT_STYLE="fg=8"
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bindkey '^ ' autosuggest-accept  # Ctrl+Space to accept suggestion
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# Useful macOS aliases
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alias showfiles="defaults write com.apple.finder AppleShowAllFiles YES && killall Finder"
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alias hidefiles="defaults write com.apple.finder AppleShowAllFiles NO && killall Finder"
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alias cleanup="find . -type f -name '*.DS_Store' -ls -delete"
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# Enhanced path completion
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zstyle ':completion:*' special-dirs true
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# Case-insensitive completion
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zstyle ':completion:*' matcher-list 'm:{a-zA-Z}={A-Za-z}'
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# Fix slow paste in zsh
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pasteinit() {
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  OLD_SELF_INSERT=${${(s.:.)widgets[self-insert]}[2,3]}
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  zle -N self-insert url-quote-magic
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}
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pastefinish() {
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  zle -N self-insert $OLD_SELF_INSERT
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}
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zstyle :bracketed-paste-magic paste-init pasteinit
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zstyle :bracketed-paste-magic paste-finish pastefinish
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# Set PATH
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export PATH="/opt/homebrew/bin:$PATH"
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EOL
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# Step 5: Install additional helpful tools
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echo "Installing additional tools..."
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brew install exa        # Modern replacement for ls
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brew install bat        # Better cat command
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brew install fd         # Better find command
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brew install ripgrep    # Better grep
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# Step 6: Add additional tool configurations to .zshrc
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cat >> ~/.zshrc << 'EOL'
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# Modern command line tools
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if command -v exa > /dev/null; then
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  alias ls="exa"
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  alias ll="exa -l"
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  alias la="exa -la"
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fi
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if command -v bat > /dev/null; then
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  alias cat="bat"
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fi
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# Useful shortcuts
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alias ..="cd .."
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alias ...="cd ../.."
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alias ....="cd ../../.."
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EOL
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# Step 7: Source the new configuration
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echo "Sourcing new configuration..."
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source ~/.zshrc
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echo "✅ ZSH setup complete!"
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echo "Your terminal has been configured with autosuggestions and autocompletion."
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echo "If you don't see the changes immediately, please restart your terminal."