systemd-first-boot-script/scripts/02-password

#!/bin/bash
# Licence : GPL v3
# Author: Laurent HUBERT
#
# Changes the root password
#
cat <<EOF
+---------------------------------------------+
| Changing super-user password                |
+---------------------------------------------+
EOF
status=1

while [ 0 -ne "$status" ]
do
  passwd
  status=$?
  if [ 0 -ne "$status" ]
  then
    echo "### Error changing super-user password ###"
    echo "Please try again"
  else
    echo "> super-user password : changed           <"
    exit 0
  fi
done

echo "### An error occurred changing super-user password   ###"
exit $status