diff --git a/lua/spacevim/command.lua b/lua/spacevim/command.lua
new file mode 100644
index 000000000..52294d38e
--- /dev/null
+++ b/lua/spacevim/command.lua
@@ -0,0 +1,21 @@
+--=============================================================================
+-- command.lua --- Commands for spacevim
+-- Copyright (c) 2016-2022 Wang Shidong & Contributors
+-- Author: Wang Shidong < wsdjeg@outlook.com >
+-- URL: https://spacevim.org
+-- License: GPLv3
+--=============================================================================
+
+local M = {}
+
+local command = require('spacevim.api').import('vim.command')
+
+function M.init()
+    command.defined({
+        name = 'SPUpdate',
+        vim_function = 'SpaceVim#plugins#update'
+    })
+    
+end
+
+return M
diff --git a/lua/spacevim/neovim.lua b/lua/spacevim/neovim.lua
deleted file mode 100644
index 3d7291a6d..000000000
--- a/lua/spacevim/neovim.lua
+++ /dev/null
@@ -1,9 +0,0 @@
-
-
-local M = {}
-
-function M.eval(l)
-    return vim.api.nvim_eval(l)
-end
-
-return M
diff --git a/lua/spacevim/opt.lua b/lua/spacevim/opt.lua
index c6d144cb9..c1690a7f0 100644
--- a/lua/spacevim/opt.lua
+++ b/lua/spacevim/opt.lua
@@ -1,4 +1,12 @@
+--=============================================================================
+-- opt.lua --- The global option of spacevim
+-- Copyright (c) 2016-2022 Wang Shidong & Contributors
+-- Author: Wang Shidong < wsdjeg@outlook.com >
+-- URL: https://spacevim.org
+-- License: GPLv3
+--=============================================================================
 local M = {}
+
 local sp = require('spacevim')
 
 local mt = {
diff --git a/lua/spacevim/vim.lua b/lua/spacevim/vim.lua
deleted file mode 100644
index e69de29bb..000000000