How to list files in specific revision in `git`?

Question

I want to know file list in specific revision in git repository. How can I do this?

Answer 1

git ls-tree -r --name-only $REV 

for example

git ls-tree -r --name-only a27689bf7f46dc0735c5b3b6076010c87224063e 

Answer 2

See dannyp's answer.

 git ls-tree -r --name-only $REV