diff --git a/src/command/commands.rs b/src/command/commands.rs
deleted file mode 100644
index 0bbf73e4..00000000
--- a/src/command/commands.rs
+++ /dev/null
@@ -1,20 +0,0 @@
-use crate::command::init::InitCommand;
-use crate::command::run::RunCommand;
-use clap::Parser;
-
-#[derive(Parser, Debug)]
-#[clap(author, version, about, long_about = None)]
-pub struct Command {
-    #[clap(subcommand)]
-    pub action: SubCommand,
-}
-
-#[derive(clap::Subcommand, Debug)]
-pub enum SubCommand {
-    /// 설정 파일 및 저장공간 초기화
-    Init(InitCommand),
-    /// DB 서버 실행
-    Run(RunCommand),
-    /// DB 클라이언트 실행
-    Client,
-}
diff --git a/src/command/init.rs b/src/command/init.rs
index 7eb50334..69cefa1d 100644
--- a/src/command/init.rs
+++ b/src/command/init.rs
@@ -4,11 +4,15 @@ use clap::Args;
 
 /// Config options for the build system.
 #[derive(Clone, Debug, Default, Deserialize, Args)]
-pub struct ConfigOptionsInit {}
+pub struct ConfigOptions {
+    /// 파일이 세팅될 경로
+    #[clap(long, short)]
+    pub config_path: Option<String>,
+}
 
 #[derive(Clone, Debug, Args)]
 #[clap(name = "init")]
-pub struct InitCommand {
+pub struct Command {
     #[clap(flatten)]
-    pub init: ConfigOptionsInit,
+    pub init: ConfigOptions,
 }
diff --git a/src/command/mod.rs b/src/command/mod.rs
index 8e318d2d..72509de2 100644
--- a/src/command/mod.rs
+++ b/src/command/mod.rs
@@ -1,8 +1,21 @@
-pub mod commands;
-pub use commands::*;
-
 pub mod init;
-pub use init::*;
-
 pub mod run;
-pub use run::*;
+
+use clap::Parser;
+
+#[derive(Parser, Debug)]
+#[clap(author, version, about, long_about = None)]
+pub struct Command {
+    #[clap(subcommand)]
+    pub action: SubCommand,
+}
+
+#[derive(clap::Subcommand, Debug)]
+pub enum SubCommand {
+    /// 설정 파일 및 저장공간 초기화
+    Init(init::Command),
+    /// DB 서버 실행
+    Run(run::Command),
+    /// DB 클라이언트 실행
+    Client,
+}
diff --git a/src/command/run.rs b/src/command/run.rs
index 72062c76..db21cc98 100644
--- a/src/command/run.rs
+++ b/src/command/run.rs
@@ -4,19 +4,28 @@ use clap::Args;
 
 /// Config options for the build system.
 #[derive(Clone, Debug, Default, Deserialize, Args)]
-pub struct ConfigOptionsRun {
-    /// 포트
-    #[clap(name = "port", long)]
-    pub port: Option<u32>,
+pub struct ConfigOptions {
+    #[clap(
+        name = "port",
+        default_value = "55555",
+        long,
+        short,
+        help = "Port to listen on"
+    )]
+    pub port: u32,
 
-    /// 호스트
-    #[clap(name = "host", long)]
-    pub host: Option<String>,
+    #[clap(
+        name = "host",
+        default_value = "0.0.0.0",
+        long,
+        help = "Hostname to listen on (IP or domain)"
+    )]
+    pub host: String,
 }
 
 #[derive(Clone, Debug, Args)]
 #[clap(name = "run")]
-pub struct RunCommand {
+pub struct Command {
     #[clap(flatten)]
-    pub value: ConfigOptionsRun,
+    pub value: ConfigOptions,
 }
diff --git a/src/constants/mod.rs b/src/constants/mod.rs
index a49b8359..309ae6fd 100644
--- a/src/constants/mod.rs
+++ b/src/constants/mod.rs
@@ -1,2 +1 @@
 pub mod predule;
-pub mod server;
diff --git a/src/constants/predule.rs b/src/constants/predule.rs
index 02dd7df7..8b137891 100644
--- a/src/constants/predule.rs
+++ b/src/constants/predule.rs
@@ -1 +1 @@
-pub use super::server::*;
+
diff --git a/src/constants/server.rs b/src/constants/server.rs
deleted file mode 100644
index 94065dd8..00000000
--- a/src/constants/server.rs
+++ /dev/null
@@ -1,2 +0,0 @@
-pub const DEFAULT_PORT: u32 = 55555;
-pub const DEFAULT_HOST: &str = "0.0.0.0";
diff --git a/src/main.rs b/src/main.rs
index 92498281..53d8d991 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -13,8 +13,7 @@ pub mod pgwire;
 pub mod server;
 pub mod utils;
 
-use command::commands::{Command, SubCommand};
-use constants::predule::{DEFAULT_HOST, DEFAULT_PORT};
+use command::{Command, SubCommand};
 use executor::predule::Executor;
 use server::predule::{Server, ServerOption};
 
@@ -34,8 +33,8 @@ async fn main() -> Result<(), Box<dyn Error + Send>> {
         }
         SubCommand::Run(run) => {
             let server_option = ServerOption {
-                port: run.value.port.unwrap_or(DEFAULT_PORT),
-                host: run.value.host.unwrap_or_else(|| DEFAULT_HOST.into()),
+                port: run.value.port,
+                host: run.value.host,
             };
             let server = Server::new(server_option);