How do a script accept bash script completion?

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Let’s say I have a script that asks for a user input as shown below

Digite o caminho do arquivo:

How do I make this input autocomplete the directory path in linux? I need this to avoid typos

linux bash
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    https://www.gnu.org/software/bash/bash.html#Programmable-Completion

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The easiest way to do this is to include a shell script in /etc/bash_completion. d/. The basic structure of this file is a simple function that executes the completion and then the complete invocation which is a bash compiler. Instead of going into detail on how to use complete, I suggest you read an Introduction to Bash Completion. Part 1 covers the basics and Part 2 goes into how you would write a completion script.

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