testing version of LuaBIOS and OpenOS

people were having issues getting them to work so now we promote consistency

data/OpenOS/bin/pwd.lua

@@ -0,0 +1,14 @@
+local shell = require("shell")
+local fs = require("filesystem")
+local _,op = shell.parse(...)
+
+local path, why = shell.getWorkingDirectory(), ""
+if op.P then
+  path, why = fs.realPath(path)
+end
+if not path then
+  io.stderr:write(string.format("error retrieving current directory: %s", why))
+  os.exit(1)
+end
+
+io.write(path, "\n")