How to run haskell code that's passed via command argument to the interpreter?

Question

Among other methods, there are a few most common ways to run a haskell program:

• ghci, load the file, run main by hand from shell
• runhaskell file.hs
• ghc file.hs && ./file

I weren't able to find, however, how to run simple code from standard input / command arguments.

For example, standard Lua interpreter will allow you to do:

$ lua -e "print (2+2)"
4

What would be an equivalent of the above for a common Haskell Platform environment?

Answer 1

It's just the same.

$ ghc -e "print (2+2)"
4