head(1) on Linux
The text 2d399808209c, as Debian 11 (Bullseye) shipped it.
output the first part of files
Flags it lists
-
--bytes -
--help -
--lines -
--quiet -
--silent -
--verbose -
--version -
--zero-terminated -
-c -
-n -
-q -
-v -
-z