Basics of Erlang

erlang_basics.sh

# erl arguments

# -pa Dir1 Dir2 ...
# What this does is add specified directories when you run erl. Standard usage below.
# Normally we would add main project ebin directory as well as deps ebin directory.
erl -pa deps/*/ebin ebin

# -smp [enable|auto|disable]
# SMP options. Auto means use enable when SMP is supported. Using auto is recommended!
erl -smp auto

# check erlang version
erl -eval 'erlang:display(erlang:system_info(otp_release)), halt().'  -noshell

# run erlang in background.
erl -detached

# specify erlang config file
erl -config ./config/sys.config