Linux completely remove mysql (centos6)

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1 ,. View system version.
CAT # / proc / Version, uname
# CAT / etc / RedHat-Release

2, check whether they have the mysql installation.
# Rpm -qa | grep mysql *

3, stop the database service.
# Service mysqld stop

4, delete the mysql service boot from the start.
Chkconfig --list # | grep MySQL
# chkconfig mysqld --del

5, remove mysql package.
# Yum remove -y mysql *

6, mysql query related files and delete.
# Find / -name mysql * | xargs rm -rf
or
# find / -name mysql * -exec rm -rf {} \;
or
# rm -rf $ (find / -name mysql *)