Reading input while also piping a script via stdin

Question

I have a simple Bash script:

#!/usr/bin/env bash
read X
echo \"X=$X\"

When I execute it with ./myscript.sh it works. But when I ex

Answer 1

When you cat a script to bash the code to execute is coming from standard input.

Where does read read from? That's right also standard input. This is why you can cat input to programs that take standard input (like sed, awk, etc.).

So you are not running "a script" per-se when you do this. You are running a series of input lines.

Where would you like read to read data from in this setup?

You can manually do that (if you can define such a place). Alternatively you can stop running your script like this.