b0caml — Easy OCaml scripts

B0caml runs OCaml scripts like ocaml. However it provides direct support for using third-party modules and compiles scripts transparently to a cache of native (or bytecode) executables.

B0caml is distributed under the ISC license and depends on b0 and cmdliner. It is pronounced /bokamɛl/ with a thick french accent.

Homepage: https://erratique.ch/software/b0caml

Installation

b0caml can be installed with opam:

opam install b0caml

If you don't use opam consult the opam file for build instructions.

Quick start

A few invocations to get you started:

> cat > echo <<EOCAML
#!/usr/bin/env b0caml

let echo oc ss = output_string oc (String.concat " " ss ^ "\n")
let () = echo stdout (List.tl (Array.to_list Sys.argv))
EOCAML
> chmod +x ./echo
> ./echo Hello world
Hello world

For more information on how to use third-party modules see the tutorial introduction of the manual (also available via odig doc b0caml).

Documentation & support

The documentation can be consulted online or via odig doc b0caml.

Questions are welcome but better asked on the OCaml forum than on the issue tracker.

Examples

A few examples can be found in the test directory.