How do you parse the following line from:/etc/yum.repos.d/fedora-core.repo: mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=core-$releasever&arch=$basearch The complete paragraph containing the line is: [core] name=Fedora Core $releasever - $basearch #baseurl=http://download.fedora.redhat.com/pub/fedora/linux/core/$releasever/$basearch/os/ mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=core-$releasever&arch=$basearch enabled=1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora file:///etc/pki/rpm-gpg/RPM-GPG-KEY I have been informed that $release and $basearch are interpreted by the yum client as described in the yum man page, but that "?" and "=" (and the surrounding text) are interpreted by Fedora's mirrorlist server. Can anyone enlighten me about how these characters are handled? Thanks - jon