shell - IO.gets 的 Expect-like 功能？

Question

例如，如果我想自动授权 hex 用户。有点像

mix hex.user auth
#!/usr/bin/expect -f

expect "Username: "
send -- "$HEX_USERNAME\r"
expect "Password: "
send -- "$HEX_PASSWORD\r"

mix hex.user auth 要求输入用户名:和密码:但我认为 expect 对此不起作用

Answer 1

给定以下脚本:

u = IO.gets("Username: ") |> String.strip
p = IO.gets("Password: ") |> String.strip

IO.puts ""
IO.puts "#{u} - #{p}"

你可以像这样传递输入:

$ export HEX_USERNAME="hexuser"
$ export HEX_PASSWORD="hexpass"
$ echo "$HEX_USERNAME\n$HEX_PASSWORD" | elixir test.exs
Username: Password:
hexuser - hexpass

所以，你可以使用

echo "$HEX_USERNAME\n$HEX_PASSWORD" | mix hex.user auth