It's https://packages.debian.org/sid/command-not-found
which is run by bash in the way I described.
In /etc/bash.bashrc:
# if the command-not-found package is installed, use it if [ -x /usr/lib/command-not-found -o -x /usr/share/command-not-found/command-not-found ]; then ... fi
alt Hacker News
which is run by bash in the way I described.
In /etc/bash.bashrc:
# if the command-not-found package is installed, use it if [ -x /usr/lib/command-not-found -o -x /usr/share/command-not-found/command-not-found ]; then ... fi