grep isn't necessary at all here:
$ apt show firefox
Package: firefox
...
Pre-Depends: debconf, snapd
If you really want to keep it off your system for good, you need something like this: $ cat /etc/apt/preferences.d/no-snapd
Package: snapd
Pin: release a=*
Pin-Priority: -1
$ export FZF_DEFAULT_OPTS="--exact"
Or invoke it with one of these: fzf --exact
fzf -e
Or if you start your search with a single quote ' it disables fuzz. (But maybe you already knew that, it sounds like you want the first option.) fuzz() { file=$(fzf) && nvim "$file"; }