Generate completion

[mbridon]

So, the --generate-complete option is pretty interesting!

However, when I run it I just get a wall of $shell script 🤦

Would be nicer if instead it could ask if I want to save it so that next time I reload my shell I can get the completion. 😏

For example, something like the following:

arx --generate-complete bash

Do you want to save the result in /usr/share/bash-completion/completions/arx so that your
shell will automatically load it? [Y/ n]