pwupdate - updates passwd and shadow NIS map

       Olaf Kirch <okir@monad.swb.de>, Thorsten Kukuk <kukuk@suse.de>

Jan 1998                                           12/31/2020                                        PWUPDATE(8)

pwupdate is invoked by rpc.yppasswdd(8) after changing the password and it should update the passwd and
       shadow NIS map. Never run it by hand.

/etc/passwd, /etc/shadow

       pwupdate - updates passwd and shadow NIS map

shadow
           Normally, only the passwd map will be updated. With this option, pwupdate will update the shadow map,
           too.

rpc.yppasswdd(8), ypserv(8)

/usr/lib/yp/pwupdate [shadow]