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diff --git a/Master/texmf-dist/scripts/l3build/l3build-help.lua b/Master/texmf-dist/scripts/l3build/l3build-help.lua
new file mode 100644
index 00000000000..770022f254d
--- /dev/null
+++ b/Master/texmf-dist/scripts/l3build/l3build-help.lua
@@ -0,0 +1,79 @@
+--[[
+
+File l3build-help.lua Copyright (C) 2018 The LaTeX3 Project
+
+It may be distributed and/or modified under the conditions of the
+LaTeX Project Public License (LPPL), either version 1.3c of this
+license or (at your option) any later version.  The latest version
+of this license is in the file
+
+   http://www.latex-project.org/lppl.txt
+
+This file is part of the "l3build bundle" (The Work in LPPL)
+and all files in that bundle must be distributed together.
+
+-----------------------------------------------------------------------
+
+The development version of the bundle can be found at
+
+   https://github.com/latex3/l3build
+
+for those people who are interested.
+
+--]]
+
+function version()
+  print(
+    "\n" ..
+    "l3build: A testing and building system for LaTeX\n\n" ..
+    "Release " .. release_date
+  )
+end
+
+function help()
+  print("usage: " .. arg[0] .. " <command> [<options>] [<names>]")
+  print("")
+  print("The most commonly used l3build commands are:")
+  if testfiledir ~= "" then
+    print("   check      Run all automated tests")
+  end
+  print("   clean      Clean out directory tree")
+  if module == "" or bundle == "" then
+    print("   ctan       Create CTAN-ready archive")
+  end
+  print("   doc        Typesets all documentation files")
+  print("   install    Installs files into the local texmf tree")
+  if module ~= "" and testfiledir ~= "" then
+    print("   save       Saves test validation log")
+  end
+  print("   tag        Update release tags in files")
+  print("   uninstall  Uninstalls files from the local texmf tree")
+  print("   unpack     Unpacks the source files into the build tree")
+  print("")
+  print("Valid options are:")
+  local longest = 0
+  for k,v in pairs(option_list) do
+    if k:len() > longest then
+      longest = k:len()
+    end
+  end
+  -- Sort the options
+  local t = { }
+  for k,_ in pairs(option_list) do
+    table.insert(t, k)
+  end
+  table.sort(t)
+  for _,k in ipairs(t) do
+    local opt = option_list[k]
+    local filler = string.rep(" ", longest - k:len() + 1)
+    if opt["desc"] then -- Skip --help as it has no desc
+      if opt["short"] then
+        print("   --" .. k .. "|-" .. opt["short"] .. filler .. opt["desc"])
+      else
+        print("   --" .. k .. "   " .. filler .. opt["desc"])
+      end
+    end
+  end
+  print("")
+  print("See l3build.pdf for further details.")
+end