A frequently asked question is: which foo tells me something, but it doesn't correspond to what happens when I actually run foo, what's going on?
This is a recent example, but we've had many more — basically anything in the which tag, and more that should all be in the path tag.
Is there one that we can consider to be canonical, so we can close the others as duplicates? Here, canonical means an answer that explains that which doesn't use the running shell's PATH and the asker should use type instead.
If we don't have one already, let's make one, possibly by editing an existing question.
