subprocess

In the world of Linux Bash scripting, managing processes efficiently can greatly enhance the functionality and responsiveness of scripts. One less commonly known yet powerful feature is coproc, which allows for bidirectional communication with subprocesses. Below, we delve into some common questions regarding coproc and explore its practical applications. coproc is a keyword introduced in Bash version 4.0. It allows you to create a coprocess, that is, to start a subprocess that your script can then communicate with via two file descriptors: one for input and another for output. This facilitates bidirectional communication between your main script and the subprocess.