Helpful when updating a user password in a script for small test clusters:
$ ssh remoteserver 'useradd newuser; $PASSWD_COMMAND'
where
$PASSWD_COMMAND is one of the following:
echo -e
"newpassword\newpassword" | passwd newuser
echo
"newuser:newpassword" | chpasswd
echo
"newpassword" | passwd --stdin newuser
