file-rename(1p) on Linux
The text a81e3c347341, as Debian 8 (Jessie) shipped it.
renames multiple files
Flags it lists
-
-E -
-V -
-e -
-f -
-force -
-h -
-help -
-m -
-man -
-n -
-nono -
-v -
-verbose -
-version