How do I pass command line arguments to stack exec

Something like this should work:

stack exec -- myprogram-exe -i myfile.txt

Another way as Michael Snoyman says should be like this:

$(stack exec which foo)

You can also use stack build with the --exec flag to build and execute in one command. The arguments to the executable have to be included in the exec argument.

$ stack build --exec "myexecutable arg1 arg2"