this post was submitted on 13 Dec 2025
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That would be the dream indeed. It's so fluid after you learn it. Other networking equipment often has good configuration CLIs as well (like juniper and vyos), but Cisco is probably the best in my experience. It's also nice how consistent they are across generations.
You can get about as close as it's possible in a normal operating system with zsh and plugins like zsh-autocomplete. Bash tries to pick up the possible alternatives from context as well (with tab suggestions) that act somewhat like
?on Cisco CLI, but implementing it is left up to the command itself to provide for the shell. Many commands luckily provide very robust autocompletion to bash out-of-the-box, especially if installed via the system package manager.Unfortunately we'll probably never reach the point of actual configuration CLIs since they only have a set amount of commands that are developed by the same company. It would be close to impossible to achieve the same level of standardisation for a general operating system, as we don't know the entire configuration of the system and there are multiple incompatible flag schemes. (As styles go, things like dd and ffmpeg throw a wrench in the works with their non-standard flags)