對於有的vps，系統默認安裝了mysql。我們需要從我們的服務器、vps上卸載(移除)默認的mysql。那麼如何(怎樣)在ubuntu\Debian上卸載mysql?
通常情況下，下列mysql軟件包會被安裝到 Debian 、Ubuntu中：
那麼如何怎樣在ubuntu\Debian上卸載mysql？
只需要使用 apt-get 命令 即可，如下面的命令，同時卸載 ubuntu \ Debian 中的 mysql server 和 mysql client ：
sudo apt-get --purge remove mysql-client mysql-server mysql-common sudo apt-get autoremove
解釋: --purge 移除所給的軟件包和配置文件
remove 表示卸載軟件包
autoremove 表示自動卸載軟件包，以及與該軟件包的依賴(軟件包)
輸入如下(注意軟件包名字)：
Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: linux-headers-3.2.0-31-virtual linux-headers-3.2.0-31 Use 'apt-get autoremove' to remove them. The following packages will be REMOVED: libdbd-mysql-perl* libmysqlclient18* mysql-client* mysql-client-5.5* mysql-common* mysql-server* mysql-server-5.5* 0 upgraded, 0 newly installed, 7 to remove and 0 not upgraded. After this operation, 67.5 MB disk space will be freed. Do you want to continue [Y/n]? y (Reading database ... 105097 files and directories currently installed.) Removing mysql-server ... Removing mysql-server-5.5 ... mysql stop/waiting Purging configuration files for mysql-server-5.5 ... Removing mysql-client ... Removing mysql-client-5.5 ... Removing libdbd-mysql-perl ... Removing libmysqlclient18 ... Purging configuration files for libmysqlclient18 ... Removing mysql-common ... Purging configuration files for mysql-common ... dpkg: warning: while removing mysql-common, directory '/etc/mysql' not empty so not removed. Processing triggers for ureadahead ... Processing triggers for man-db ... Processing triggers for libc-bin ... ldconfig deferred processing now taking place
刪除 /etc/mysql 目錄，使用如下命令:
sudo rm -rf /etc/mysql/
解釋：-r 同時刪除該目錄下的所有子目錄。 -f 表示強制刪除
