`df|grep` might be “the better tool” because the cognitive overhead of knowing an extra program’s interface. You’re just saying “show me the subset of this oth

`df|grep` might be “the better tool” because the cognitive overhead of knowing an extra program’s interface. You’re just saying “show me the subset of this other list” and you automatically select your go-to solution for that: `|grep` The reason for seeking a better tool is when too much excessive work (== time) is involved, or list generation has side effects. But in this case you don’t have two million mount points, so no need to worry.