src/lua-5.1/test/env.lua

-- read environment variables as if they were global variables

local f=function (t,i) return os.getenv(i) end
setmetatable(getfenv(),{__index=f})

-- an example
print(a,USER,PATH)
Initial commit. 2010-01-26 21:00:30 -06:00			`-- read environment variables as if they were global variables`

			`local f=function (t,i) return os.getenv(i) end`
			`setmetatable(getfenv(),{__index=f})`

			`-- an example`
			`print(a,USER,PATH)`