The escript binaries output by mix escriptize are actually made up of 3 lines of ascii text (the escript shell script bit) followed by a big blob of zip data that contains your project’s beam files.
If you want to see what beam files have been bundled into your escript do the following:
Generate your escript:
$ mix escriptise
# Creates my_escript
Exact the zip data:
$ tail -n +4 my_escript > my_escript.zip
Now list the contents of the zip to see the included beam files:
$ unzip -l my_escript.zip
Archive: my_escript.zip
Length Date Time Name
-------- ---- ---- ----
3032 02-03-14 16:45 Elixir.Access.Atom.beam
2392 02-03-14 16:45 Elixir.Access.HashDict.beam
2780 02-03-14 16:45 Elixir.Access.List.beam
6612 02-03-14 16:45 Elixir.Access.beam
4672 02-03-14 16:45 Elixir.Application.Behaviour.beam
4588 02-03-14 16:45 Elixir.ArgumentError.beam
4624 02-03-14 16:45 Elixir.ArithmeticError.beam
…
248 02-03-14 16:45 my_escript.app
-------- -------
2406827 179 files
Posted by Dan M to elixir tips (2014-02-03 17:30)