RedHat version in rpm spec files

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http://www.unix.com – Hi In opensuse we have this nice version control variable I use much when designing rpm spec files: Code: rpm --showrc | grep suse_version %if 0%{?suse_version} > 0 && 0%{?suse_version} < 1700 -14: suse_version      1140 But I do not find anything close to this in rhel/centos The only way I've found is to sed /etc/redhat-release Like this: Code: cat /etc/redhat-release | sed 's/[^0-9]//g' 63 But I do not know if this holds for all releases. Thanks (HowTos)