安装 MySQL 初始化时，报错如下：
[root@hcdb1 ~]# /usr/local/mysql/scripts/mysql_install_db --defaults-file=/etc/my.cnf --basedir=/usr/local/mysql --datadir=/data/mysql/3307/data --user=mysql
-bash: /usr/local/mysql/scripts/mysql_install_db: /usr/bin/perl: bad interpreter: No such file or directory
原因：缺 perl perl-devel包。
解决办法：安装上即可：
yum install -y perl perl-devel