mysqld_safe啓動報錯 mysqld_safe The file /usr/local/mysql/bin/mysqld does not exist or is not executable

報錯（以下），可是使用mysqld直接啓動沒有問題。

150718 00:03:38 mysqld_safe Logging to '/var/log/mysqld.log'.
150718 00:03:38 mysqld_safe The file /usr/local/mysql/bin/mysqld
does not exist or is not executable. Please cd to the mysql installation
directory and restart this script from there as follows:
./bin/mysqld_safe&
See http://dev.mysql.com/doc/mysql/en/mysqld-safe.html for more information

[1]+  Exit 1                  mysqld_safe --skip-grant-tables --user=mysql

說明：mysqld_safe啓動腳本默認的從/usr/local/mysql目錄中讀取另一個啓動腳本mysqld，由於個人安裝目錄爲/home/mysql/product/5.6/mysql-1。因此找不到相關文件。能夠從兩個方面解決。

方法一：在/usr/local/mysql建立連接文件

mkdir -p /usr/local/mysql/bin
ln -s /home/mysql/product/5.6/mysql-1/bin/mysqld /usr/local/mysql/bin/mysqld

方法二：將mysqld_safe中的全部/usr/local/mysql目錄改成本身實際的安裝目錄

<pre name="code" class="sql">sed -i 's#/usr/local/mysql#/home/mysql/product/5.6/mysql-1#g' /home/mysql/product/5.6/mysql-1/bin/mysqld_safe

再次啓動成功。