[英]How to unix pipe the output of one command into Elixir's Mix Task?
I want to "pipe" the output of the cat
command into an Elixir Mix Task and hold it in a variable as a binary. 我想将
cat
命令的输出“传递”到Elixir混合任务中,并将其作为二进制文件保存在变量中。
I have already tried using the IO.gets/1
, but it reads just the first line of the output. 我已经尝试使用
IO.gets/1
,但是它只读取输出的第一行。
cat textfile.txt | mix print
defmodule Mix.Tasks.Print do
use Mix.Task
def run(_argv) do
Task.async(fn -> IO.gets("") end)
|> Task.await(t)
|> IO.puts() # prints the first line
end
end
I want to get hold of the whole file's contents in a binary variable in Elixir and print it to the console, but I get just the first line. 我想在Elixir中的二进制变量中保存整个文件的内容,并将其打印到控制台,但是我只有第一行。 I'd expect Elixir to have some built-in solution, to end on EOF.
我希望Elixir有一些内置的解决方案,以EOF结尾。
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