Installing OCaml
Once you have opam, you can create a "switch" so that anything you installed for this course won't contaminate the global environment.
Inside your terminal, run
opam switch create cs160 ocaml-base-compiler.4.13.0
eval $(opam env)
This will create a new switch called cs160. It will also compile the tools necessary to run OCaml programs, including a compiler (ocamlc) and an interpreter (ocaml).
Once the switch is created, you can play with the interpreter by running ocaml in your terminal.
But we recommend using utop as an alternative. To install it, run
opam install utop
opam will install any additional dependencies required by utop.