[root@localhost ~]# wget ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7-p160.tar.gz [root@localhost ~]# tar zxfv ruby-1.8.7-p160.tar.gz [root@localhost ~]# cd ruby-1.8.7-p160 [root@localhost ruby-1.8.7-p160]# ./configure --prefix=/usr [root@localhost ruby-1.8.7-p160]# make [root@localhost ruby-1.8.7-p160]# make install