Enhancing Bash and Zsh Tab Completion: Showing Descriptions for Complete Words

This article details an improvement to Bash and Zsh tab completion, allowing it to display descriptions even for already completed words. Previously, tab completion only showed descriptions when multiple options matched, making it inconvenient for users to see descriptions of single commands. The author cleverly solves this by adding 'dummy' completion options, enabling users to see descriptions with a single tab press. This significantly improves user experience, despite a minor UI imperfection of word duplication.