プロンプトの変更

 $ export MYSQL_PS1="\u@\h[\d]> "
 $ mysql -h db_srv -u root -p foo_db
 root@db_srv[foo_db]> SELECT ...

 mysql> prompt \u@\h[\d]>

 $ mysql --prompt="\u@\h[\d]" -h db_srv -u root -p foo_db

参考

http://www.thegeekstuff.com/2010/02/mysql_ps1-6-examples-to-make-your-mysql-prompt-like-angelina-jolie/