is it possible to get lua interpreter version information in script?
lua, version
Solution
As the duplicate question says, the standard way to get Lua version is:
print(_VERSION)
Anyway, `_VERSION` will contain a string like `Lua 5.1`, but it's not the same as `lua -v`, which outputs the whole version information including min version number like `Lua 5.1.4`
There is another way: calling `lua -v` directly:
io.popen("lua -v")
--Lua 5.1.4 Copyright (C) 1994-2008 Lua.org, PUC-Rio
Note that `io.popen` is not portable, but it should work in both Linux and Windows.
Problem
All I know is how to do it from command line, that is the `-v` switch. I need something like `phpversion()` or `sys.version` in python. Is that possible ?