這是本文件的舊版！
yum search epel yum install epel-release yum list glibc
RPM Build
https://fedoraproject.org/wiki/How_to_create_a_GNU_Hello_RPM_package
rpmdev-setuptree rpmbuild -ba SPECS/caddy.spec rpm -qpl --scripts RPMS/x86_64/caddy-0.9.0-1.el6.x86_64.rpm