# cat /etc/centos-release
CentOS Linux release 7.2.1511 (Core) 
1.安裝軟體ruby:
yum -y install ruby rubygems
2.安裝：
# gem install innodb_ruby
Fetching: bindata-2.4.3.gem (100%)
Successfully installed bindata-2.4.3
Fetching: digest-crc-0.4.1.gem (100%)
Successfully installed digest-crc-0.4.1
Fetching: innodb_ruby-0.9.15.gem (100%)
Successfully installed innodb_ruby-0.9.15
Parsing documentation for bindata-2.4.3
Installing ri documentation for bindata-2.4.3
Parsing documentation for digest-crc-0.4.1
Installing ri documentation for digest-crc-0.4.1
Parsing documentation for innodb_ruby-0.9.15
Installing ri documentation for innodb_ruby-0.9.15
3 gems installed
3.使用：