Fresh tmux setup + configure

tmux.sh

#!/bin/bash

# This script installs tmux and configures it with common key bindings and settings.
#
# Usage:
# chmod +x tmux.sh
# ./tmux.sh or bash tmux.sh

# Determine the OS
ios="$(uname)"

if [[ "$ios" == "Linux" ]]; then
  # Update and install tmux for Linux
  sudo apt update && sudo apt install -y tmux
elif [[ "$ios" == "Darwin" ]]; then
  # Install tmux for macOS
  if ! command -v brew &> /dev/null; then
    echo "Homebrew not found. Installing Homebrew..."
    /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
  fi
  brew install tmux
else
  echo "Unsupported operating system: $ios"
  exit 1
fi

# Create a default .tmux.conf configuration
TMUX_CONF="$HOME/.tmux.conf"

cat << EOF > $TMUX_CONF
# General Settings
set -g mouse on               # Enable mouse support
set -g history-limit 10000    # Set scrollback buffer to 10,000 lines
setw -g mode-keys vi          # Use vi keys in copy mode

# Prefix Key
unbind C-b                    # Unbind default prefix
set -g prefix C-a             # Set prefix to Ctrl-a
bind C-a send-prefix          # Allow double-tapping Ctrl-a

# Split Windows
bind | split-window -h        # Split pane horizontally
bind - split-window -v        # Split pane vertically

# Navigation between Panes
bind h select-pane -L         # Move left
bind j select-pane -D         # Move down
bind k select-pane -U         # Move up
bind l select-pane -R         # Move right

# Resizing Panes
bind -r < resize-pane -L 5    # Resize pane left
bind -r > resize-pane -R 5    # Resize pane right
bind -r + resize-pane -U 5    # Resize pane up
bind -r _ resize-pane -D 5    # Resize pane down

# Reload Configuration
bind r source-file ~/.tmux.conf \; display-message "Config reloaded"

# Set status bar style
set -g status-bg black        # Status bar background color
set -g status-fg white        # Status bar text color
set -g status-left '#[fg=green](#S) ' # Session name
EOF

# Inform the user
echo "tmux has been installed and configured!"
echo "You can edit the configuration file at: $TMUX_CONF"

echo "To apply the configuration, run: tmux source-file $TMUX_CONF"