passwd(1) on Linux
The text 33aeebd80492, as Debian 8 (Jessie) shipped it.
change user password
Flags it lists
-
--all -
--delete -
--expire -
--help -
--inactive -
--keep-tokens -
--lock -
--maxdays -
--mindays -
--quiet -
--repository -
--root -
--status -
--unlock -
--warndays -
-R -
-S -
-a -
-d -
-e -
-h -
-i -
-k -
-l -
-n -
-q -
-r -
-u -
-w -
-x