better startup

sys/apps/System.lua

@@ -13,7 +13,7 @@ local env = {
   aliases = shell.aliases(),
   lua_path = LUA_PATH,
 }
-Config.load('multishell', env)
+Config.load('shell', env)
 
 UI.TextEntry.defaults.backgroundFocusColor = colors.black
 
@@ -126,7 +126,7 @@ function systemPage.tabs.pathTab:eventHandler(event)
     env.path = self.entry.value
     self.grid:setIndex(self.grid:getIndex())
     self.grid:draw()
-    Config.update('multishell', env)
+    Config.update('shell', env)
     systemPage.notification:success('reboot to take effect')
     return true
   end
@@ -148,7 +148,7 @@ function systemPage.tabs.aliasTab:eventHandler(event)
     env.aliases[self.grid:getSelected().alias] = nil
     self.grid:setIndex(self.grid:getIndex())
     self.grid:draw()
-    Config.update('multishell', env)
+    Config.update('shell', env)
     systemPage.notification:success('reboot to take effect')
     return true
 
@@ -158,7 +158,7 @@ function systemPage.tabs.aliasTab:eventHandler(event)
     self.path:reset()
     self:draw()
     self:setFocus(self.alias)
-    Config.update('multishell', env)
+    Config.update('shell', env)
     systemPage.notification:success('reboot to take effect')
     return true
   end

sys/apps/shell

@@ -61,14 +61,12 @@ function shell.run(...)
 
     local result, err
 
+    local env = Util.shallowCopy(sandboxEnv)
     if isUrl then
-      local env = Util.shallowCopy(sandboxEnv)
-      setmetatable(env, { __index = _G })
       result, err = Util.runUrl(env, path, unpack(args))
     else
-      result, err = os.run(Util.shallowCopy(sandboxEnv), path, unpack(args))
+      result, err = Util.run(env, path, unpack(args))
     end
-
     if multishell and multishell.getTitle then
       local title = 'shell'
       if #tProgramStack > 0 then
@@ -237,7 +235,7 @@ if #tArgs > 0 then
   -- Run the program specified in this new shell
   local s, m = shell.run( ... )
   if not s and m and m ~= 'Terminated' then
-    error(m or '')
+    error(m)
   end
   return s, m
 end