git-describe(1) on Linux
The text 9dc9a90ad56a, as Debian 10 (Buster) shipped it.
Give an object a human readable name based on an available ref
Flags it lists
-
--abbrev -
--all -
--always -
--broken -
--candidates -
--contains -
--debug -
--dirty -
--exact-match -
--exclude -
--first-parent -
--long -
--match -
--tags