(
exists file "/etc/enterprise-release" whose
(
exists line whose
(
exists match
(
regex "Enterprise Linux Enterprise Linux (AS|Server) release 5"
)
of it
)
of it
)
)
OR
(
exists file "/etc/redhat-release" whose
(
exists line whose
(
exists match
(
regex "Red Hat Enterprise Linux (Client|Desktop|Server|Workstation) release (5|6)"
)
of it or exists match
(
regex "CentOS.* (5|6)"
)
of it
)
of it
)
)
(exists file "/etc/enterprise-release" whose (exists line whose (exists match (regex "Enterprise Linux Enterprise Linux (AS|Server) release 5") of it) of it)) OR (exists file "/etc/redhat-release" whose (exists line whose (exists match (regex "Red Hat Enterprise Linux (Client|Desktop|Server|Workstation) release (5|6)") of it or exists match (regex "CentOS.* (5|6)") of it) of it))