diff --git a/root/init.go b/root/init.go
index 6421dbf..9c24429 100644
--- a/root/init.go
+++ b/root/init.go
@@ -2,6 +2,10 @@ package root
 
 import (
 	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
 	"github.com/spf13/cobra"
 )
 
@@ -38,4 +42,61 @@ end
 
 func init() {
 	rootCmd.AddCommand(initCmd)
+	rootCmd.AddCommand(setupCmd)
+}
+
+var setupCmd = &cobra.Command{
+	Use:   "setup",
+	Short: "Automatically setup iris shell integration and install binary",
+	Run: func(cmd *cobra.Command, args []string) {
+		home, _ := os.UserHomeDir()
+
+		localBin := filepath.Join(home, ".local", "bin")
+		_ = os.MkdirAll(localBin, 0755)
+
+		exe, _ := os.Executable()
+		targetExe := filepath.Join(localBin, "iris")
+
+		fmt.Printf("Installing iris to %s...\n", targetExe)
+		input, _ := os.ReadFile(exe)
+		_ = os.WriteFile(targetExe, input, 0755)
+
+		shellPath := os.Getenv("SHELL")
+		shellName := filepath.Base(shellPath)
+		var configFile string
+		var evalCmd string
+
+		switch shellName {
+		case "zsh":
+			configFile = filepath.Join(home, ".zshrc")
+			evalCmd = `eval "$(iris init zsh)"`
+		case "bash":
+			configFile = filepath.Join(home, ".bashrc")
+			evalCmd = `eval "$(iris init bash)"`
+		case "fish":
+			configFile = filepath.Join(home, ".config", "fish", "config.fish")
+			evalCmd = `iris init fish | source`
+		default:
+			fmt.Printf("Unsupported shell: %s. Please add iris init manually.\n", shellName)
+			return
+		}
+
+		content, _ := os.ReadFile(configFile)
+		if strings.Contains(string(content), "iris init") {
+			fmt.Printf("Iris is already configured in %s\n", configFile)
+		} else {
+			f, err := os.OpenFile(configFile, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0644)
+			if err != nil {
+				fmt.Printf("Failed to update %s: %v\n", configFile, err)
+				return
+			}
+			defer f.Close()
+
+			f.WriteString("\n# Iris Autocomplete\n" + evalCmd + "\n")
+			fmt.Printf("✓ Added iris integration to %s\n", configFile)
+		}
+
+		fmt.Println("\nSetup complete! Please restart your terminal or run:")
+		fmt.Printf("  source %s\n", configFile)
+	},
 }