diff --git a/src/plugin/interface/command.rs b/src/plugin/interface/command.rs
index bc7040047..34b6f9082 100644
--- a/src/plugin/interface/command.rs
+++ b/src/plugin/interface/command.rs
@@ -59,27 +59,6 @@ impl UserData for PluginCommander {
                 Ok(())
             },
         );
-        methods.add_function("execQuiet", |_, cmd: Vec<String>| {
-            if cmd.len() == 0 {
-                return Ok(());
-            }
-            let cmd_name = cmd.get(0).unwrap();
-            let mut command = Command::new(cmd_name);
-            let t = cmd
-                .iter()
-                .enumerate()
-                .filter(|(i, _)| *i > 0)
-                .map(|v| v.1.clone())
-                .collect::<Vec<String>>();
-            command.args(t);
-            command.stdout(Stdio::null());
-            command.output()?;
-            Ok(())
-        });
-        methods.add_function("execSimple", |_, cmd: String| {
-            let _ = Command::new(cmd).stdout(Stdio::inherit()).output()?;
-            Ok(())
-        });
     }
 
     fn add_fields<'lua, F: mlua::UserDataFields<'lua, Self>>(_fields: &mut F) {}
diff --git a/src/plugin/interface/fs.rs b/src/plugin/interface/fs.rs
new file mode 100644
index 000000000..24169e011
--- /dev/null
+++ b/src/plugin/interface/fs.rs
@@ -0,0 +1,21 @@
+use std::path::PathBuf;
+
+use mlua::UserData;
+
+pub struct PluginFileSystem;
+impl UserData for PluginFileSystem {
+    fn add_methods<'lua, M: mlua::UserDataMethods<'lua, Self>>(methods: &mut M) {
+        methods.add_function("exists", |_, path: String| {
+            let path = PathBuf::from(path);
+            Ok(path.exists())
+        });
+        methods.add_function("is_dir", |_, path: String| {
+            let path = PathBuf::from(path);
+            Ok(path.is_dir())
+        });
+        methods.add_function("is_file", |_, path: String| {
+            let path = PathBuf::from(path);
+            Ok(path.is_file())
+        });
+    }
+}
\ No newline at end of file
diff --git a/src/plugin/interface/mod.rs b/src/plugin/interface/mod.rs
index 219ba2f47..d843c0e6a 100644
--- a/src/plugin/interface/mod.rs
+++ b/src/plugin/interface/mod.rs
@@ -2,6 +2,7 @@ use mlua::{FromLua, Function, ToLua};
 
 pub mod logger;
 pub mod command;
+pub mod fs;
 
 #[derive(Debug)]
 pub struct PluginInfo<'lua> {
@@ -38,16 +39,16 @@ impl<'lua> FromLua<'lua> for PluginInfo<'lua> {
                 res.author = v;
             }
 
-            if let Ok(v) = tab.get::<_, Function>("onInit") {
+            if let Ok(v) = tab.get::<_, Function>("on_init") {
                 res.on_init = Some(v);
             }
-            if let Ok(v) = tab.get::<_, Function>("onLoad") {
+            if let Ok(v) = tab.get::<_, Function>("on_load") {
                 res.on_load = Some(v);
             }
-            if let Ok(v) = tab.get::<_, Function>("onBuildStart") {
+            if let Ok(v) = tab.get::<_, Function>("on_build_start") {
                 res.on_build_start = Some(v);
             }
-            if let Ok(v) = tab.get::<_, Function>("onBuildFinish") {
+            if let Ok(v) = tab.get::<_, Function>("on_build_finish") {
                 res.on_build_finish = Some(v);
             }
 
@@ -67,16 +68,16 @@ impl<'lua> ToLua<'lua> for PluginInfo<'lua> {
         res.set("author", self.author.to_string())?;
 
         if let Some(e) = self.on_init {
-            res.set("onInit", e)?;
+            res.set("on_init", e)?;
         }
         if let Some(e) = self.on_load {
-            res.set("onLoad", e)?;
+            res.set("on_load", e)?;
         }
         if let Some(e) = self.on_build_start {
-            res.set("onBuildStart", e)?;
+            res.set("on_build_start", e)?;
         }
         if let Some(e) = self.on_build_finish {
-            res.set("onBuildFinish", e)?;
+            res.set("on_build_finish", e)?;
         }
 
         Ok(mlua::Value::Table(res))
diff --git a/src/plugin/mod.rs b/src/plugin/mod.rs
index ffb012e32..aa98d7684 100644
--- a/src/plugin/mod.rs
+++ b/src/plugin/mod.rs
@@ -7,7 +7,7 @@ use crate::tools::{app_path, clone_repo};
 
 use self::{
     interface::PluginInfo,
-    interface::{command::PluginCommander, logger::PluginLogger},
+    interface::{command::PluginCommander, logger::PluginLogger, fs::PluginFileSystem},
 };
 
 pub mod interface;
@@ -32,10 +32,11 @@ impl PluginManager {
 
         let manager = lua.create_table().unwrap();
 
-        lua.globals().set("plugin_logger", PluginLogger).unwrap();
+        lua.globals().set("PLUGIN_LOGGER", PluginLogger).unwrap();
         lua.globals()
-            .set("plugin_commander", PluginCommander)
+            .set("PLUGIN_COMMAND", PluginCommander)
             .unwrap();
+        lua.globals().set("PLUGINFS", PluginFileSystem).unwrap();
 
         let plugin_dir = Self::init_plugin_dir();
         let mut index = 1;