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% to install:
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% sudo apt-get install erlang-ic
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% to compile:
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% erlc helloworld.erl
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% to run:
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% erl -noshell -s helloworld hello_world -s init stop
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-module(helloworld).
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-export([hello_world/0]).
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hello_world() -> io:fwrite("hello, world\n").
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