If you need to search for a deleted file, you can filter your git log:

git log --diff-filter=D --summary

You can pass in a directory:

git log --diff-filter=D --summary . #current working directory

Or search by author of the commit which deleted the file:

git log --diff-filter=D  --author=goliatone --summary

Now, if you want to restore the deleted file, you can issue the following command:

git checkout <commit>~1 <filename>

You can create an alias:

$ nano ~/.gitconfig

[aliases]
dl = log --diff-filter=D --summary