Re: compgen -W [wordlist] will do command subtitution and parameter expansion in wordlist

[Koichi Murase]

2022年3月3日(木) 22:05 ladyrick via Bug reports for the GNU Bourne Again
SHell <bug-bash@gnu.org>:
>         After many debug, I found that compgen will do command subtitution
>         and parameter expansion in word list.

This is actually the documented behavior. For example, the
bash-completion project relies on this behavior. To obtain the result
you want, we need to write it in the following way (i.e. to pass the
literal '$(fc -l -10)' to the compgen builtin):

    compgen -W '$(fc -l -10)' -- "${COMP_WORDS[1]}"