From 531820f3d60a301751c41d0aac5bbf5615f677b1 Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Sun, 27 Apr 2025 23:23:25 +0900
Subject: feat: run "clock" subcommand if no subcommand is given

---
 README.md    | 18 ++++++++++++------
 cmd/clock.go |  2 +-
 cmd/root.go  |  4 ++++
 3 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index 963bcd0..3a2b891 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ A digital clock that runs in your terminal, providing clock, alarm and timer.
 ## Installation
 
 ```bash
-go install github.com/nsfisis/term-clock@latest
+$ go install github.com/nsfisis/term-clock@latest
 ```
 
 ## Usage
@@ -21,7 +21,13 @@ go install github.com/nsfisis/term-clock@latest
 Displays the current time in digital format.
 
 ```bash
-term-clock clock
+$ term-clock clock
+```
+
+or
+
+```bash
+$ term-clock
 ```
 
 ### Alarm Mode
@@ -29,7 +35,7 @@ term-clock clock
 The screen flashes when the specified time is reached. Time should be specified in 24-hour format (HH:MM).
 
 ```bash
-term-clock alarm 07:00  # Alarm at 7:00 AM
+$ term-clock alarm 07:00  # Alarm at 7:00 AM
 ```
 
 ### Timer Mode
@@ -38,9 +44,9 @@ Counts down from the specified duration. Time should be specified using Go's dur
 The screen flashes when the timer ends.
 
 ```bash
-term-clock timer 25m    # 25-minute timer
-term-clock timer 90s    # 90-second timer
-term-clock timer 1h30m  # 1 hour 30 minutes timer (note: maximum 99 minutes)
+$ term-clock timer 25m    # 25-minute timer
+$ term-clock timer 90s    # 90-second timer
+$ term-clock timer 1h30m  # 1 hour 30 minutes timer (note: maximum 99 minutes)
 ```
 
 ## How to Exit
diff --git a/cmd/clock.go b/cmd/clock.go
index 71f01c7..485d6bd 100644
--- a/cmd/clock.go
+++ b/cmd/clock.go
@@ -65,6 +65,6 @@ func cmdClock(cmd *cobra.Command, args []string) {
 
 var clockCmd = &cobra.Command{
 	Use:   "clock",
-	Short: "Clock mode",
+	Short: "Clock mode (default)",
 	Run:   cmdClock,
 }
diff --git a/cmd/root.go b/cmd/root.go
index 3efadab..5a91eae 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -7,6 +7,10 @@ import (
 var rootCmd = &cobra.Command{
 	Use:   "term-clock",
 	Short: "A clock on your terminal",
+	// Run 'clock' subcommand by default.
+	Run: func(cmd *cobra.Command, args []string) {
+		clockCmd.Run(cmd, args)
+	},
 }
 
 func init() {
-- 
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