RobertS
Elixir EScript pass echo to script
Hey, I am trying to set up an elixir escript for a simple script.
I want to pass a result from echo using Linux pipe.
Here is an example:
echo -e '1234' | ./script argument
However in main script function:
def main(args) do
IO.inspect(args)
end
when inspecting args I see only:
["argument"] instead of ["1234", "argument"]
Would appreciate your help or any resources.
Marked As Solved
RobertS
I found it:
The pipe operator passes the data as stdin so you need to do IO.read(:stdio, :line) in main to read it.
Also Liked
Tuxified
IIRC linux pipes pass info to the next process via STDIN, so I think you need some function from IO module to read it, for example:
defmodule MyScript do
def main(args) do
IO.inspect(args, label: "Args")
Enum.each(IO.stream(:stdio, :line), &IO.write("stdio: #{&1}"))
end
end
[edit]
You found the anwser while I was looking at Elixir docs 
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