tmutil-restorelatest

#!/usr/bin/env bash
_file_abspath="$(echo "$1" | ruby -e 'puts File.absolute_path(STDIN.read)')"
_file_volumename="$(diskutil info -plist / | plutil -convert json -o - - | ruby -rjson -e 'puts JSON.parse(STDIN.read)["VolumeName"]')"
_file_backup="${_file_abspath}.tmutil-backup"

_tmutil_latestbackup="$(tmutil latestbackup)"

mv "${_file_abspath}" "${_file_backup}"

tmutil restore -v "${_tmutil_latestbackup}/${_file_volumename}${_file_abspath}" "${_file_abspath}" || mv "${_file_backup}" "${_file_abspath}"

TODO: handle multiple drives.