Listing 5. The database container must be started first and then
initialized.

# su -
# docker run -it -d -e MYSQL_ROOT_PASSWORD=ljdocker --name MYDB worlddb
fbd930169f26fce189a9d6020861eb136643fdc9ee73a4e1f114e0bfd0fe6a5c
# docker exec -it MYDB bash
root@fbd930169f26:/# dir
bin   cities1000.txt  dev    etc   lib loaddata.sh  mnt   opt   root  sbin srv  tmp  var
boot  countries.txt   entrypoint.sh  home  lib64  media mydbcommands.sql  proc  run   selinux  sys  usr
root@fbd930169f26:/# ./loaddata.sh
Warning: Using a password on the command line interface can be insecure.
root@fbd930169f26:/# exit