diff --git a/kernel/src/arch/riscv32/mod.rs b/kernel/src/arch/riscv32/mod.rs
index 963faea..22c2bf0 100644
--- a/kernel/src/arch/riscv32/mod.rs
+++ b/kernel/src/arch/riscv32/mod.rs
@@ -27,7 +27,7 @@ pub extern fn rust_main(hartid: usize, dtb: usize, hart_mask: usize) -> ! {
     timer::init();
 
     ::process::init();
-    ::thread::spawn(::fs::shell);
+    ::thread::spawn(::shell::shell);
 
     unsafe { cpu::start_others(hart_mask); }
     ::kmain();
diff --git a/kernel/src/arch/x86_64/mod.rs b/kernel/src/arch/x86_64/mod.rs
index b739925..3f7fda5 100644
--- a/kernel/src/arch/x86_64/mod.rs
+++ b/kernel/src/arch/x86_64/mod.rs
@@ -48,7 +48,7 @@ pub extern "C" fn _start(boot_info: &'static BootInfo) -> ! {
     driver::init();
 
     ::process::init();
-    ::thread::spawn(::fs::shell);
+    ::thread::spawn(::shell::shell);
 
     AP_CAN_INIT.store(true, Ordering::Relaxed);
 
diff --git a/kernel/src/console.rs b/kernel/src/console.rs
deleted file mode 100644
index 01798ad..0000000
--- a/kernel/src/console.rs
+++ /dev/null
@@ -1,30 +0,0 @@
-use core::ops::Deref;
-use alloc::string::String;
-use alloc::collections::VecDeque;
-
-pub fn get_line() -> String {
-    let mut s = String::new();
-    loop {
-        let c = get_char();
-        match c {
-            '\u{7f}' /* '\b' */ => {
-                if s.pop().is_some() {
-                    print!("\u{7f}");
-                }
-            }
-            ' '...'\u{7e}' => {
-                s.push(c);
-                print!("{}", c);
-            }
-            '\n' | '\r' => {
-                print!("\n");
-                return s;
-            }
-            _ => {}
-        }
-    }
-}
-
-pub fn get_char() -> char {
-    ::fs::STDIN.pop()
-}
diff --git a/kernel/src/fs.rs b/kernel/src/fs.rs
index 3ffb3e6..8ea584f 100644
--- a/kernel/src/fs.rs
+++ b/kernel/src/fs.rs
@@ -5,6 +5,7 @@ use arch::driver::ide;
 use sync::Condvar;
 use sync::SpinNoIrqLock as Mutex;
 use core::any::Any;
+use core::slice;
 
 // Hard link user program
 #[cfg(target_arch = "riscv32")]
@@ -36,33 +37,6 @@ lazy_static! {
     };
 }
 
-pub fn shell() {
-    let files = ROOT_INODE.list().unwrap();
-    println!("Available programs: {:?}", files);
-
-    const BUF_SIZE: usize = 0x40000;
-    let mut buf = Vec::with_capacity(BUF_SIZE);
-    unsafe { buf.set_len(BUF_SIZE); }
-    loop {
-        print!(">> ");
-        use console::get_line;
-        let cmd = get_line();
-        if cmd == "" {
-            continue;
-        }
-        let name = cmd.split(' ').next().unwrap();
-        if let Ok(file) = ROOT_INODE.lookup(name) {
-            use process::*;
-            let len = file.read_at(0, &mut *buf).unwrap();
-            let pid = processor().manager().add(ContextImpl::new_user(&buf[..len], cmd.split(' ')));
-            processor().manager().wait(thread::current().id(), pid);
-            processor().yield_now();
-        } else {
-            println!("Program not exist");
-        }
-    }
-}
-
 struct MemBuf(&'static [u8]);
 
 impl MemBuf {
@@ -84,9 +58,6 @@ impl Device for MemBuf {
     }
 }
 
-use core::slice;
-use alloc::vec::Vec;
-
 #[cfg(target_arch = "x86_64")]
 impl BlockedDevice for ide::IDE {
     const BLOCK_SIZE_LOG2: u8 = 9;
diff --git a/kernel/src/lib.rs b/kernel/src/lib.rs
index 9c54064..1c8ae2f 100644
--- a/kernel/src/lib.rs
+++ b/kernel/src/lib.rs
@@ -51,7 +51,7 @@ mod syscall;
 mod fs;
 mod sync;
 mod trap;
-mod console;
+mod shell;
 
 #[allow(dead_code)]
 #[cfg(target_arch = "x86_64")]
diff --git a/kernel/src/shell.rs b/kernel/src/shell.rs
new file mode 100644
index 0000000..c227d9f
--- /dev/null
+++ b/kernel/src/shell.rs
@@ -0,0 +1,59 @@
+//! Kernel shell
+
+use alloc::string::String;
+use alloc::vec::Vec;
+use fs::ROOT_INODE;
+use process::*;
+
+
+pub fn shell() {
+    let files = ROOT_INODE.list().unwrap();
+    println!("Available programs: {:?}", files);
+
+    const BUF_SIZE: usize = 0x40000;
+    let mut buf = Vec::with_capacity(BUF_SIZE);
+    unsafe { buf.set_len(BUF_SIZE); }
+    loop {
+        print!(">> ");
+        let cmd = get_line();
+        if cmd == "" {
+            continue;
+        }
+        let name = cmd.split(' ').next().unwrap();
+        if let Ok(file) = ROOT_INODE.lookup(name) {
+            let len = file.read_at(0, &mut *buf).unwrap();
+            let pid = processor().manager().add(ContextImpl::new_user(&buf[..len], cmd.split(' ')));
+            processor().manager().wait(thread::current().id(), pid);
+            processor().yield_now();
+        } else {
+            println!("Program not exist");
+        }
+    }
+}
+
+fn get_line() -> String {
+    let mut s = String::new();
+    loop {
+        let c = get_char();
+        match c {
+            '\u{7f}' /* '\b' */ => {
+                if s.pop().is_some() {
+                    print!("\u{7f}");
+                }
+            }
+            ' '...'\u{7e}' => {
+                s.push(c);
+                print!("{}", c);
+            }
+            '\n' | '\r' => {
+                print!("\n");
+                return s;
+            }
+            _ => {}
+        }
+    }
+}
+
+fn get_char() -> char {
+    ::fs::STDIN.pop()
+}