Create MySQL database and new user

mysql> create database donie_drupal;
mysql> grant all privileges on donie_drupal.* to donie_user@'localhost'
identified by 'P4ssw0rd' with grant option;

Find and replace text in multiple file in Linux console

 find . -name '*.txt' | xargs perl -pi -e 's/oldtext/newtext/g'

examples:
find . -name '*.txt' | xargs perl -pi -e 's/From: root/From: csf\@donie\-centos5\.slowrock\.com/g'
find . -name '*.txt' | xargs perl -pi -e 's/To: root/To: donie\@slowrock\.com/g'