You want to create a script that uses tab completion for a custom command mycmd. What must you do to enable tab completion for it?

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Linux CLI - Navigating the File System

You want to create a script that uses tab completion for a custom command mycmd. What must you do to enable tab completion for it?

AWrite and register a completion function and source it in the shell

BAdd the command to /etc/passwd

CRename the script to start with 'tab_'

DUse the command without any special setup; tab completion works automatically

Step-by-Step Solution

Solution:

Step 1: Understand custom command tab completion setup
Custom commands need a completion function that tells the shell how to complete arguments.
Step 2: Identify how to enable completion
Writing and registering a completion function and sourcing it enables tab completion for the custom command.
Final Answer:
Write and register a completion function and source it in the shell -> Option A
Quick Check:
Custom command completion = Write & register function [OK]

Quick Trick: Custom completions need functions registered in shell [OK]

Common Mistakes:

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