file(1) on Linux
The text 6443a25358a8, as Debian 9 (Stretch) shipped it.
determine file type
Flags it lists
-
--apple -
--brief -
--checking-printout -
--compile -
--dereference -
--exclude -
--extension -
--files-from -
--help -
--keep-going -
--list -
--magic-file -
--mime -
--mime-encoding -
--mime-type -
--no-buffer -
--no-dereference -
--no-pad -
--parameter -
--preserve-date -
--print0 -
--raw -
--separator -
--special-files -
--uncompress -
--uncompress-noreport -
--version -
-0 -
-C -
-E -
-F -
-L -
-N -
-P -
-Z -
-b -
-c -
-d -
-e -
-f -
-h -
-i -
-k -
-l -
-m -
-n -
-p -
-r -
-s -
-v -
-z