摘要：
1, Ubuntu安装gitsudo apt-get install git-core2, Redhat安装gitsudo yum install git-all3, ruby和SHELL沟通ifconfig = `/sbin/ifconfig` #``为反引号，1旁边的那个键,用来引用SHELL下的指令，非常方便，返回命令执行后的response给ifconfigip = /[\d{2}.]{4}/.match(ifconfig)4, 数组赋值array = %w{it is like you are back from the dead}=> ["it", &qu 阅读全文
