bin/mysqladmin -u root shutdown

     or

     bin/mysqladmin -u root -p shutdown

You must check issues regarding MySQL Administration for utilities for Backup and Restore of your data, the example below show's or will give you an idea how to do this;

     ex.: 

        tar -cvf /tmp/mysql-data.tar data

     ex.: 

         tar -xf /tmp/mysql-data.tar

   ex.: 

     gunzip patch-file-name.gz

Patches are really just text files.  Another way to obtain a patch is to view it in your web browser and then export the text as a new text file

     ex.: 

         patch -p1 patch-file-name

         the parameter above should be patch -p1 (lessthan sign) patch-file-name, but due to .html format the (less-than sign) can not displayed

     ex.: 

         rm config.cache

         make clean